Parameters

Stress-free measurement - professional model Water quality analysis is repeatedly performed in laboratories on a daily basis. Our high-end benchtop model was developed to provide simplicity with excellent on-site usability - from operation and maintenance through to troubleshooting.Ideal for student training and routine applications. Good value for money: no bells and whistles that sounds good but is rarely used. From a renowned manufacturer whose company started with pH meters as early as 1945.Highly accurate pH and ORP measurements Automatic temperature compensation Accepts up to 6 pH calibration points Auto calibrates USA, NIST, & DIN pH buffers Displays offset & average slope Allows 1-point ORP calibration and temperature calibrationScope of delivery: Measuring device with integrated electrode stand Universal mains adapter with 6 plugs Operating instructions Starter set version additionally contains: 9625-10D refillable pH electrode with plastic body pH 4, 7 and 10 buffer solutions & 3.33M KCl (1 x 250ml each)with electrode holder Manufacturer article number:1300095720 (PH1500-SR)

High-end laboratory measuring instrument for analytics  Dear customers, herewith we offer you our highly professional Horiba laboratory table-top measuring instrument of the 2000 series.  The LAQUA 2000 series laboratory tabletop meter has a very high-quality 5 inch display with backlighting which shows you all the important information, such as the measured value with up to three decimal places (depending on the resolution), the temperature, the date with time and much more.  The LAQUA 2000 series also offers you an adequate device memory with automatic data storage after a set time interval to document your daily measurements accurately over a long period of time. To protect the device settings from unauthorised access, they are password-protected. After your measurements, you can easily transfer all measurement data from the device to your PC via a USB cable in CSV, Excel and Pdf formats using the DAS20 software.  In order to facilitate your daily work with the device, the table measuring device visualises the correct calibration, the stable measurement as well as the electrode wear condition. The operation is intuitive because the available keys are marked with symbols and abbreviations. After the analysis, you can clean the device easily and in a time-saving manner with a damp cloth, as the surface is dirt-repellent due to its nature. The electrode stand included in the starter set can be used to hold two electrodes and adjust their height. This allows you to individually align your electrode to your container or glass for calibration and measurement. Special features of the LAQUA PH2000 model: The PH2000 allows you to measure the pH- or ORP- valuepH-ORP wide measuring range; -2.000 to 20.000 pH  high accuracy; ± 0.003 pH  resolution: 0.1, 0.01 or 0.001 pH  continuous display of calibrated points  display of offset and slope - by segment and average up to 5 pH  calibration points ± 2000.0 mV  1-point redox calibration  automatically recognises and calibrates USA, NIST, NIST2 and DIN pH buffers  allows CUST (Custom) buffers for manual calibration  Below we would like to show you in full the general functions of the Horiba LAQUA 2000 series: internal memory for up to 2000 data sets, measurement data with time and date information records and stores data in the unit memory based on a specified time interval a 4-digit password protects the meter set-up mode from unauthorised access data can be transferred to a computer and exported in the following formats CSV/Excel/PDF GLP/GMP  compliance of the instrument as data can be displayed, recorded and printed with date and time stamp on the instrument Software updates can be downloaded to the instrument Calibration reminder function, indicates that it is time to calibrate (alarm adjustable up to 90 days) Electrode holder is mounted on the meter and can hold up to 2 electrodes (rotates 360º and can be moved up and down 30cm) Displays measurement stability in measurement and calibration mode displays electrode condition based on calibration data smooth surface, easy cleaning RS-232/USB, therefore easy PC and printer connection and free instrument software Ergonomic design for easy viewing and operation Clearly labelled and easy-to-use ports for communication and measurement 5" digital display with backlight, shows all important measurement values and status Automatic calibration, recognises a wide range of standard solutionsadjustable switch-off time (up to 30 minutes) temperature compensation, the temperature in °C or °F is either automatically detected if a temperature sensor is connected (ATC mode) or manually entered by the user several measuring modes: Auto-Stable mode signals a stable measured value,Auto-Hold mode holds a stable measured valueReal Time mode continuously displays current readings small meter footprint of 155 x 150 mm, saves valuable space Temperature detection, easy display of sample temperature user selectable resolution, up to 3 digits Fixed and individual calibration pointsEasy navigation, navigate through the settings menu by up, down, right and left Scope of delivery: Measuring device with integrated electrode standUniversal mains adapter with 6 plugs Operating instructions Starter set version additionally contains 9625-10D refillable pH electrode with plastic body pH 4, 7 and 10 buffer solutions & 3.33M KCl (1 x 250ml each) with electrode holder Manufacturer part number:Meter only   PH2000 (3200896829) Starter-set   PH2000-SR (1300098880)

Thank you for your interest in our smart and customizable Horiba WQ-300 series instruments.The high-quality digital multi-parameter handheld meters with their generous color LCD display with LED backlight (7 cm x 5.2 cm) are ideally suited for use in the field under all conditions and in direct daylight.Use our configurator to freely select the suitable measuring device of the WQ-300 Horiba series (1 to 3 channels), the measuring parameters (sensor cartridges) and desired cable length (with integrated sensor receptacle + digital module) according to your wishes and requirements. At a later stage, you can always connect another available measurement parameter to the device via the corresponding sensor cable or carry it in the case as a supplement. As with other handheld measuring devices from Horiba, a major advantage of these devices is that the measuring devices are highly resistant to shock, slipping and scratching thanks to a special rubber coating. Only four standard AA 2500 mAh batteries are required for operation, and to give you more flexibility when you are on the move, the WQ-300 series devices can also be powered by a powerbank or battery pack via the integrated USB interface. The IP67 certification, which certifies dustproofness and protection against temporary submersion for up to 30 minutes at a water depth of one meter, completes the overall professional package, along with the usual ergonomic design and ease of user operation.  Horiba attests to its outstanding product quality by offering a three-year warranty on the LAQUA WQ-300 series handheld meters. Other added values and features:During analyses, the user is supported by the display of operating instructions in the form of smiley icons, which is supplemented by an LED status display on the sensor. This is intended to prevent operating errors, which can lead to implausible measurement results. The design decision to install only a small number of control buttons and not to implement any nested user menus serves to ensure that the devices can be operated easily and safely even during discontinuous use as well as when used by other users.  The measuring instruments have an electrode wear indicator, a measuring stability indicator on the instrument and sensor, a locking function to "save" the currently measured value on the display, free naming of the measuring point (8 characters), automatic calibration functions, integrated sensor holders, self-diagnosis function, as well as GLP functions. The fold-out stand on the back of the instruments means that you always have your hands free to carry out your measurements easily and safely. Measurement data can be conveniently transferred to your computer or cell phone via USB or WiFi.All handheld meters of the 300 series are delivered in a reinforced measuring case for mobile use in the open air. This provides space for the meter, for electrodes and cables, for up to eight 60 ml bottles of buffer solutions including an integrated buffer solution bottle holder for easier calibration. Particularly noteworthy is the automatic sensor recognition of the instrument through the use of sensor cables with integrated digital sensor recording. Information about the sensor, calibration data as well as measurement settings are stored in the sensor recording and transmitted to the measuring instrument. In addition, calibration of all connected sensors is possible at the same time, since each sensor head independently stores the measurement and calibration data and transmits it to the WQ300 series measuring device.Optionally, there is the possibility to connect and use analog sensors via the Horiba BNC sensor adapter with the device, please contact us for this.Languages:GermanEnglishFrenchSpanishPortugueseChineseScope of delivery:WQ-300 series handheld meter in a carrying casethe digital electrode you have chosen, if applicable, and the corresponding sensor-specific cable with integrated digital sensor receptaclemanualManufacturer article number single measuring device WQ-310-K 1 channel: 3200832605 Note: Chloride sensor, if selected, is supplied without chloride ion strength regulator and chloride electrode filling solution. This must be procured by the customer. Without the filling solution the sensor can´t be used. Why We Use These Measuring Devices in Water Treatment Precise calcium control is a key element of efficient water treatment – from drinking water purification and process water management to environmental analysis. Elevated calcium levels can lead to scaling, pipe damage, energy losses, and disruptions in chemical processes. For this purpose, we offer tailored high-end solutions from the Horiba LAQUA WQ Series (WQ310-K, WQ320-K, WQ330-K) in our online shop, specifically designed to meet the needs of water technology:  WQ310-K: Single-parameter solution for targeted measurements • WQ320-K: Simultaneous monitoring of, for example, calcium and conductivity • WQ330-K: Three-channel measurement for complex real-time multi-parameter analyses Why We Rely on These Devices: • They provide reliable data for controlling and optimizing water treatment systems • They offer digital evaluation, documented results, and interfaces for process integration • They are robust, packaged in a practical analysis case, and thus also suitable for mobile on-site use • They allow calcium to be measured in combination with other parameters such as pH, conductivity, or redox – for a holistic and efficient approach

Thank you for your interest in our smart and customizable Horiba WQ-300 series instruments.The high-quality digital multi-parameter handheld meters with their generous color LCD display with LED backlight (7 cm x 5.2 cm) are ideally suited for use in the field under all conditions and in direct daylight.Use our configurator to freely select the suitable measuring device of the WQ-300 Horiba series (1 to 3 channels), the measuring parameters (sensor cartridges) and desired cable length (with integrated sensor receptacle + digital module) according to your wishes and requirements. At a later stage, you can always connect another available measurement parameter to the device via the corresponding sensor cable or carry it in the case as a supplement. As with other handheld measuring devices from Horiba, a major advantage of these devices is that the measuring devices are highly resistant to shock, slipping and scratching thanks to a special rubber coating. Only four standard AA 2500 mAh batteries are required for operation, and to give you more flexibility when you are on the move, the WQ-300 series devices can also be powered by a powerbank or battery pack via the integrated USB interface. The IP67 certification, which certifies dustproofness and protection against temporary submersion for up to 30 minutes at a water depth of one meter, completes the overall professional package, along with the usual ergonomic design and ease of user operation.  Horiba attests to its outstanding product quality by offering a three-year warranty on the LAQUA WQ-300 series handheld meters. Other added values and features:During analyses, the user is supported by the display of operating instructions in the form of smiley icons, which is supplemented by an LED status display on the sensor. This is intended to prevent operating errors, which can lead to implausible measurement results. The design decision to install only a small number of control buttons and not to implement any nested user menus serves to ensure that the devices can be operated easily and safely even during discontinuous use as well as when used by other users.  The measuring instruments have an electrode wear indicator, a measuring stability indicator on the instrument and sensor, a locking function to "save" the currently measured value on the display, free naming of the measuring point (8 characters), automatic calibration functions, integrated sensor holders, self-diagnosis function, as well as GLP functions. The fold-out stand on the back of the instruments means that you always have your hands free to carry out your measurements easily and safely. Measurement data can be conveniently transferred to your computer or cell phone via USB or WiFi.All handheld meters of the 300 series are delivered in a reinforced measuring case for mobile use in the open air. This provides space for the meter, for electrodes and cables, for up to eight 60 ml bottles of buffer solutions including an integrated buffer solution bottle holder for easier calibration. Particularly noteworthy is the automatic sensor recognition of the instrument through the use of sensor cables with integrated digital sensor recording. Information about the sensor, calibration data as well as measurement settings are stored in the sensor recording and transmitted to the measuring instrument. In addition, calibration of all connected sensors is possible at the same time, since each sensor head independently stores the measurement and calibration data and transmits it to the WQ300 series measuring device.Optionally, there is the possibility to connect and use analog sensors via the Horiba BNC sensor adapter with the device, please contact us for this.Languages:GermanEnglishFrenchSpanishPortugueseChineseScope of delivery:WQ-300 series handheld meter in a carrying casethe digital electrode you have chosen, if applicable, and the corresponding sensor-specific cable with integrated digital sensor receptaclemanualManufacturer article number single measuring device WQ-320-K 2 channel: 3200832606 Note: Chloride sensor, if selected, is supplied without chloride ion strength regulator and chloride electrode filling solution. This must be procured by the customer. Without the filling solution the sensor can´t be used.

Horiba WQ330-K – Your Professional 3-Channel Water Quality Meter Expandable multi-parameter system for simultaneous measurement of pH, conductivity, redox, and other water parameters The Horiba LAQUA WQ330-K is a powerful multi-channel device for advanced water analysis, both on-site and in the laboratory. With three freely configurable measurement channels, it can simultaneously record parameters such as pH, conductivity, redox potential, TDS, temperature, oxygen, ammonia, calcium, chloride, nitrate, fluoride, and potassium. Intuitive operation, automatic sensor recognition, and digital calibration ensure accurate, fast, and reproducible measurements. Flexible Multi-Parameter System for Field and Laboratory Applications The analysis kit with the Horiba WQ330-K is ideal for environmental and water body monitoring, research and teaching, as well as drinking and process water control. The large LCD display with LED backlight ensures excellent readability even in direct sunlight. Measurement data can be exported and documented via USB or wirelessly, greatly simplifying traceability and analysis. The modular system allows the device to be quickly and precisely adapted to any measurement task. It is ideal for users who need to efficiently and reliably monitor multiple water parameters. Technical Features and Key Advantages of the WQ330-K The three measurement channels of the Horiba WQ330-K enable simultaneous recording of different water parameters, reducing measurement time and allowing better evaluation of relationships between parameters. The modular sensor concept allows flexible use of digital sensors, which are automatically recognized and store their calibration history. Notably, the combination of high measurement precision, user-friendliness, and mobility makes this device stand out. Quick deployment without complicated setup, along with easy data transfer for documentation and analysis, makes the Horiba LAQUA WQ330-K an ideal solution for professional water analytics. Frequently asked questions How long is the warranty period for HORIBA analysers? The warranty period is 2 years for the 300 (WQ) series and 1 year for the F series after delivery. Where can I find suitable replacement electrodes or buffer solutions? You can find the appropriate replacement electrodes and buffer solutions in the shop under the main item at the bottom of the cross-selling section. How do I clean the probe before calibration? The sensors should be cleaned with DI water (deionised). After cleaning, wipe them with tissue paper if possible.

Find out more about the accuracy of HORIBA’s pocket conductivity testers: your ideal choice for precise conductivity measurements. The EC-11, EC-22 and EC-33 models, manufactured in Japan, represent the pinnacle of quality in pocket testers. They offer numerous benefits for users in laboratories, industry, aquaculture, water treatment, schools and universities, as well as amateur gardeners. An overview of the HORIBA Conductivity Pocket Tester series: Model EC-11: Water resistance, micro-sample analysis from 0.12 ml and a conductivity measurement range of up to 19.99 mS/cm are the key features of these instruments. They are straightforward to use and maintain, ensuring long-term reliability. Model EC-22: Offers a larger temperature display and a wider measurement range. Perfect for advanced applications where the temperature of the medium must be determined for detailed analysis. Model EC-33: With the widest measurement range, TDS measurement capability and advanced features, this model sets new standards. For professionals who need to carry out the most precise measurements under varying conditions. Applications and benefits for the user: ‘Immersion’: Direct measurement is possible in solutions. For example, you can immerse the tester in a beaker and determine the value. ‘Scoop’: The hinged lid, which acts as a scoop here, allows you to easily take a sample from a hard-to-reach area. ‘Drops’: Efficient analysis of the smallest volumes. Thanks to their user-friendliness, durability and ‘Made in Japan’ quality, HORIBA pocket conductivity testers are a reliable solution for a variety of measurement applications. Manufacturer’s item number: 3999960126 LAQUAtwin EC-22: The world’s first pocket-sized conductivity meter Your mobile laboratory – for on-site use: Ideal for water quality testing in aquariums, foodstuffs and many other applications. HORIBAs unique compact analyser integrates the electrode, display and sample chamber to enable simple, effective on-site testing through direct measurement using a single drop. Minimum sample volume: 0.12 ml Up to 3 calibration points Conductivity and temperature display Automatic range Automatic calibration Automatic standard recognition: 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm Automatic temperature compensation: 2%/°C fixed Temperature calibration: 5 to 40.0 °C Automatic stabilisation / automatic hold measurement Automatic switch-off: 30 mins Low battery indicator IP67 rating: dust and water resistant Replaceable sensor 400-hour battery life: continuous operation without backlight Materials: ABS-epoxy housing and titanium coating with platinum-black sensor Display: custom (monochrome) LCD with backlight Operating conditions: 5 to 40°C, 85% or less relative humidity Warranty: 2 years – meter, 6 months – sensor Packaged in a handy carrying case Supplied with 1413 µS/cm & 12.88 mS/cm conductivity standards (14 ml each), conditioning solution (4 ml), 2 x CR2032 batteries, dropper, instructions and quick start guide Additional information We would like to inform you of an upcoming product update for the LAQUAtwin pocket-sized analysers. To enhance product safety and prevent accidental swallowing of the batteries by infants and young children, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for increased safety. Reason: To prevent accidental swallowing of batteries. Production date: from January 2026 in Japan Deliveries to EMEA distribution partners: from March 2026 As this change is currently being rolled out, you may receive mixed deliveries of the current and updated versions during the transition period. Please note: The EC4 replacement sensors, both old and new, are not compatible with each other. Similarly, the conditioning solutions for the old and new versions are not compatible with the respective device variants. How can you tell if you have an older or a new device? If your Pocket Tester is marked ‘4-cell’, you have the latest version of this device. In this case, you will need the replacement sensors listed in the cross-selling section, as well as the standard and conditioning solutions. These have been specially optimised for the new Pocket Testers and are not suitable for the older models.

HORIBA pH Handheld Tester – Ideal for Water and Environmental Analysis Precise pH measurements on-site – compact, reliable, and easy to use The Horiba LAQUAtwin pH tester is ideal for water quality testing in rivers, drinking water, and process water. With a measurement range of 0.0 to 14.0 pH and a 2-point calibration, the tester is suitable for a wide range of pH analyses. Just a single drop of sample provides quick and reliable measurement results. The tester combines electrode, display, and sample container in a robust IP67-rated housing that is dust- and waterproof. The digital display with backlight shows both pH and mV values. Features such as automatic stability detection and Auto-Hold simplify operation. With up to 400 hours of battery life, the tester is suitable for extended measurement series. Included are calibration buffer solutions (pH 4.01 & 7.00), batteries, pipette, instruction manual, and a carrying case. Handheld pH tester for fast and precise results With its wide measurement range and 2-point calibration, the Horiba LAQUAtwin pH tester is suitable for a variety of pH analyses. Even a single drop of sample is enough to obtain fast and accurate results. Its compact design makes the mobile pH tester highly user-friendly and allows on-site measurements without complex sample preparation or laboratory infrastructure. Robust, waterproof design with comprehensive features The tester integrates the electrode, display, and sample container in a robust IP67-rated housing that is dust- and waterproof. The digital backlit display clearly shows pH and mV values. Features like automatic stability detection and Auto-Hold simplify daily use. With a battery life of up to 400 hours, the tester is suitable for long measurement series. The package includes calibration buffer solutions (pH 4.01 & 7.00), batteries, pipette, instruction manual, and a practical carrying case. Typical applications of the Horiba LAQUAtwin pH Pocket Tester Aquaculture and corals Aquariums Beer, beverages, and food Heating systems Laboratories and schools Horticulture Water treatment Additional information We would like to inform you of an upcoming product update for the LAQUAtwin handheld analysers. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: From January 2026 in Japan Deliveries to EMEA distribution partners: From March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition period. Frequently asked questions How long is the warranty period for HORIBA pocket testers? The warranty period is two years from delivery for commercial customers. How many measurements can be taken before the sensor needs to be replaced? This varies depending on the application, use and storage of the Horiba tester. As a rule, the sensor should be replaced after one year. How long is the warranty period for replacement sensors for pocket testers? The warranty period is 12 months after delivery for commercial customers. How do you clean the pocket tester? The pocket tester can be rinsed under water. We recommend cleaning with DI water (deionised). Tissue paper is recommended for drying after cleaning. How can the pocket tester be reset to factory settings? (e.g. in the event of an incorrect measurement result) This information can be found in the operating instructions. These can be found in the download area of the shop and on the product. Is calibration necessary before each measurement? Basically, yes. Further information can be found in the operating instructions.

Mobile pH Tester with 3-Point Calibration for On-the-Go Use Horiba LAQUAtwin pH Tester – ideal for water and environmental analysis The Horiba LAQUAtwin pH Tester pH-22 is compact, robust, and designed for mobile use. With up to three calibration points and a measurement range of 0.00 to 14.00 pH, this device delivers high precision and reliability. Direct measurement with just a single drop of sample provides fast results. Features such as automatic buffer recognition, temperature compensation, and Stabil/Hold functionality make daily operation simple and convenient. Mobile precision pH tester for reliable on-site measurements The tester combines electrode, display, and sample container in a dust- and waterproof IP67 housing, making it ideal for field and laboratory applications. The digital backlit display shows pH and mV values clearly and accurately. Automatic shut-off and battery status indicators ensure convenient operation. The package includes calibration buffer solutions (pH 4.01 and 7.00), batteries, a pipette, and a quick-start guide. Why accurate pH measurement is critical – and why a handheld tester is ideal pH is a key parameter in water, environmental, and process analysis because it significantly influences chemical reactions, biological processes, and material stability. Even small deviations can substantially impact water quality, product quality, or process safety. A mobile handheld pH tester allows fast, reliable measurements directly on site. Changes can be detected immediately, and corrective actions implemented without delay. The Horiba LAQUAtwin pH-22 combines this flexibility with high measurement precision, making it ideal for field, laboratory, and routine applications. Typical applications for the Horiba LAQUAtwin pH handheld tester Aquaculture and coral monitoring Beer, beverage, and food production Heating systems Laboratories and schools Environmental analysis Water treatment Horticulture Additional information We would like to inform you of an upcoming product update for the LAQUAtwin handheld analysers. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: From January 2026 in Japan Deliveries to EMEA distribution partners: From March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition period. Frequently asked questions How long is the warranty period for HORIBA pocket testers? The warranty period is two years from delivery for commercial customers. How many measurements can be taken before the sensor needs to be replaced? This varies depending on the application, use and storage of the Horiba tester. As a rule, the sensor should be replaced after one year. How long is the warranty period for replacement sensors for pocket testers? The warranty period is 12 months after delivery for commercial customers. How do you clean the pocket tester? The pocket tester can be rinsed under water. We recommend cleaning with DI water (deionised). Tissue paper is recommended for drying after cleaning. How can the pocket tester be reset to factory settings? (e.g. in the event of an incorrect measurement result) This information can be found in the operating instructions. These can be found in the download area of the shop and on the product. Is calibration necessary before each measurement? Basically, yes. Further information can be found in the operating instructions.

Manufacturer Part No. 3999960124 LAQUAtwin PH-33: The world's first pocket-sized PH meter Your mobile laboratory - for use on site: Ideal for water quality testing in aquatic, drinking and process water and many other applications. HORIBA's unique compact meter integrates electrode, display and sample container to enable simple, effective on-site testing by direct measurement with a single drop. Minimum sample volume: 0.1 ml (0.05 ml with sampling sheet B) Up to 5 calibration points pH, mV and temperature display Automatic calibration Automatic buffer recognition: USA & NIST pH buffers Automatic temperature compensation Temperature calibration: 5 to 40.0 ºC Automatic stable / automatic hold measurement Automatic switch off: 30 min. Low battery indicator IP67 rating dust and waterproof Replaceable sensor 400 hours battery life: continuous operation without backlight Material: ABS epoxy Display: customised (monochrome) LCD with backlight Operating conditions: 5 to 40°C, 85% or less relative humidity Warranty: 2 years - meter, 6 months - sensor Packed in a practical carrying case Supplied with pH 4.01 & 7.00 buffers (14ml each), 2 x CR2032 batteries, dropper, instructions and quick reference guide Additional information We would like to inform you of an upcoming product update for the LAQUAtwin handheld analysers. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: From January 2026 in Japan Deliveries to EMEA distribution partners: From March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition period.

The original solution should be used as it is. For general use as standard solution sets, 101-S (100-4.7.9 and #310 internal solution) are also available. Manufacturer article number:3200043639 (100-2)

The original solution should be used as it is. For general use as standard solution sets, 101-S (100-4.7.9 and #310 internal solution) are also available. Manufacturer article number:3200043637 (100-7)

The original solution should be used as it is. For general use as standard solution sets, 101-S (100-4.7.9 and #310 internal solution) are also available. Manufacturer article number:3200043636 (100-9)

Horiba pH6.86 (500 ml), pH4 (250 ml) and pH9.18 (250 ml) buffer solution (101-S) Reference electrode Internal solution #300 (250 ml) / dropper Use undiluted.The set contains standard and internal solutions, as shown. Manufacturer article number:3200043642 (101-S)

Waterproof conductivity meter for low-range measurements, featuring automatic temperature compensation and a replaceable probe. Ideal for precise conductivity measurements in the laboratory, water analysis, and mobile applications. Milwaukee C65 Waterproof Low-Range Conductivity Meter The Milwaukee C65 is designed for the precise measurement of electrical conductivity in low-conductivity solutions. Its compact design and waterproof housing make the meter suitable for both laboratory applications and mobile use in humid or demanding environments. Integrated automatic temperature compensation (ATC) accounts for temperature fluctuations during measurement, ensuring reliable conductivity readings. This allows for convenient data collection even under changing environmental conditions. A key advantage of the Milwaukee C65 is its replaceable probe. In the event of wear or damage, there is no need to replace the entire unit, thereby reducing maintenance effort and ongoing costs. Additionally, manual 1-point calibration allows for easy verification and adjustment of measurement accuracy. Thanks to its light weight and compact dimensions, the device is easy to transport and ideal for users who need to perform conductivity measurements directly on-site. Technical Specifications Measurement parameter: Conductivity Measurement range: 0 to 1999 µS/cm Resolution: 1 µS/cm Accuracy: EC: ±2% of full scale Temperature compensation: Automatic 5 to 50 °C / 41 to 122 °F; β = 2 %/°C Your benefits at a glance For conductivity measurements in the low range Waterproof housing for demanding operating conditions Replaceable probe for extended service life Compact and lightweight design Suitable for laboratory and field use Typical applications Water analysis Laboratory applications Environmental testing Water treatment Education and research Frequently Asked Questions What do I need this meter for in everyday life? It measures the conductivity of liquids, e.g. in water treatment, laboratories or hydroponics. Is the device easy to use, even for beginners? Yes, it has a simple design and shows the reading directly on the display. Can I use the device in water? Yes, it is waterproof and can be submerged in liquids without any problems. What does automatic temperature compensation mean? The device automatically adjusts readings to the water temperature for more accurate results. Will I need to replace the electrode at some point? Yes, the electrode is replaceable and can be changed when necessary. For which applications is the meter particularly suitable? Ideal for aquariums, hydroponics, swimming pools and general water analysis.

Waterproof conductivity meter with an extended measurement range, automatic temperature compensation, and a replaceable electrode. Suitable for applications in aquaristics, industry, water treatment, and environmental analysis. Milwaukee C66 Waterproof Conductivity Meter for High Ranges The Milwaukee C66 is designed for conductivity measurements in applications involving higher salt and mineral concentrations. This compact meter combines a rugged design with ease of use, making it suitable for both stationary use and on-site measurements. Automatic temperature compensation (ATC) accounts for temperature fluctuations during measurement, ensuring reliable conductivity readings. This makes the device suitable for various operating conditions and allows for use both indoors and outdoors. The replaceable electrode is a particularly practical feature. If electrode performance declines, the electrode can be replaced without needing to replace the entire meter. This contributes to cost-effective operation and a long service life for the device. Thanks to its extended measurement range, the Milwaukee C66 is suitable for applications in aquaristics, water treatment, and industrial sectors where higher conductivity levels may occur. Its compact, pen-style design ensures easy handling and convenient portability. Technical Data Measurement parameter: Conductivity Measurement range: 0.00 to 10.00 mS/cm Accuracy: EC: ±2% of full scale Temperature compensation: Automatic (ATC) Key Benefits at a Glance For conductivity measurements in higher ranges Waterproof housing for demanding operating conditions Replaceable electrode for long-term use of the device Compact and lightweight pen-style meter Simple calibration Suitable for mobile and stationary applications Typical Applications Aquaristics Water treatment Industrial applications Process control Environmental analysis Frequently Asked Questions What exactly is this meter used for? It measures high conductivity levels in water, for example in industry, agriculture or water treatment. Can I use it to measure water with a high mineral content? Yes, the meter is designed specifically for this purpose and delivers reliable results even at high levels. Is the meter suitable for outdoor use? Yes, it is waterproof and can be used in the field or on the go without any problems. Do I need to take the temperature into account when measuring? No, the automatic temperature compensation takes care of that for you. Can the measuring tip be replaced if necessary? Yes, the electrode can be easily replaced when it is worn out. Who would particularly benefit from this device? Anyone who needs to regularly check water quality with higher readings.

Frequently Asked Questions What does a TDS meter actually measure? A TDS meter measures the electrical conductivity of the water, which is caused by dissolved substances. This is used to calculate a value for the total amount of dissolved solids. It is important to note that the meter only displays the quantity of dissolved substances, not their type or purity. A high TDS value therefore does not automatically mean that the water is contaminated or unhealthy – nor does a low value guarantee that the water is free from pollutants. Measurement range: 0 to 1990 ppm (mg/l) What does TDS mean? What is ppm? TDS stands for Total Dissolved Solids – that is, the total amount of all dissolved solids in the water. These include minerals, salts, metals and organic substances dissolved in the water. The concentration of these dissolved substances is given in milligrams per litre (mg/L) or parts per million (ppm). Is it easy to use, even for beginners? Yes. Switch it on, dip it in the water and read the value straight away – no prior knowledge required. How accurate are the measurement results? For everyday use, the readings are reliable and provide a good indication of water quality. Can I use the tester when I’m out and about? Yes, the device is compact, lightweight and fits easily into any bag. Who would particularly benefit from buying this? Ideal for anyone who wants to check their water quality quickly and easily themselves.

Compact conductivity tester for the rapid measurement of electrical conductivity in water samples. Features automatic temperature compensation, simple calibration, and a handy pen-style design for mobile use and routine checks. Milwaukee CD601 Digital Conductivity Tester – Simple, precise, pocket-sized EC measurement The Milwaukee CD601 is a compact conductivity tester designed for quick water quality checks. Its handy pen-style format makes it ideal for mobile use, allowing for easy on-site determination of electrical conductivity. Automatic temperature compensation (ATC) accounts for temperature fluctuations during measurement, ensuring convenient operation in various environments. Single-point calibration allows for straightforward setup and simplifies regular accuracy checks. Its robust design makes the tester suitable for both daily use and occasional spot checks. The device is particularly appealing to users who need a quick and easy way to assess the conductivity of water samples. The CD601 is used in a wide range of fields, including aquaristics, aquaculture, water treatment, and education. This compact meter is also a practical tool for routine checks of process water or drinking water. Technical Data Measurement parameter: Conductivity Measurement range: 0 to 1990 µS/cm Resolution: 10 µS/cm Accuracy: EC: ±2% of full scale Temperature compensation: Automatic 5 to 50 °C (41 to 122 °F) Your Benefits at a Glance Compact pen-style design for mobile measurements Rapid determination of electrical conductivity Automatic temperature compensation (ATC) Simple 1-point calibration Suitable for a wide range of water applications Typical Areas of Application Aquaristics Aquaculture and coral farming Water treatment Beverage industry Swimming pools Schools and educational institutions Water conditioning Frequently Asked Questions How do I measure water quality correctly with this device? Simply hold it in the water, wait a moment, and read the EC value straight away. What can I use the EC Pen for? Ideal for plants, hydroponics, aquariums and general water monitoring. Is it easy for beginners to use? Yes, the device is very simple to use and ready for immediate use. Do I need to calibrate the tester regularly? Yes, regular calibration ensures consistently accurate results. How quickly does the device display a result? The measurement is taken in a few seconds immediately after immersion. Is the Milwaukee CD601 Digital Conductivity Pen (EC) robust enough for daily use? Yes, it is designed for regular use and withstands typical everyday wear and tear well.

Frequently Asked Questions What does the Milwaukee CD610 TDS tester measure? The Milwaukee CD610 measures the total dissolved solids (TDS) content in water. It records the total amount of substances dissolved in the water and displays the value in ppm (parts per million) or mg/L. The measuring range extends from 0 to 10,000 ppm, making it suitable even for water with a higher mineral or salt content. Can I use it to check water quality quickly? Yes, the device provides a reading within a few seconds, saving you the hassle of time-consuming water tests. What applications is the meter suitable for? Ideal for drinking water, aquariums, ponds, hydroponics, swimming pools and many other water applications. Do I need experience with such meters? No, it is easy to use and straightforward even for beginners. Can I use the device on the go? Yes, thanks to its compact pen-like shape, it fits comfortably in a pocket or toolbox. How do I read the result? The measurement is shown directly on the digital display and is easy to read. Why is a digital meter better than test strips? You get quick, accurate results without having to compare colours or make estimates. Is the device also suitable for water with a high mineral content? Yes, it has been specially developed for higher measurement ranges and is suitable for many types of water.

Compact conductivity tester for measurements in the medium-to-high conductivity range. Features automatic temperature compensation, a rugged design, and simple operation for laboratory, water analysis, and mobile applications. Milwaukee CD611 Conductivity Tester – Reliable, simple, and precise EC measurement The Milwaukee CD611 is a compact conductivity tester designed for the reliable measurement of electrical conductivity in water samples with medium-to-high conductivity levels. Its ease of use makes the device suitable for both regular spot checks and mobile field applications. Integrated automatic temperature compensation accounts for temperature fluctuations during measurement, ensuring consistent readings. This allows the tester to be used in various environments without the need for manual temperature corrections. Thanks to its rugged construction, the CD611 is built for daily use. Its compact size ensures easy portability, making it a practical solution for users who need quick measurement results directly on-site. Whether in the laboratory, during water analysis, or for routine checks in technical systems, the Milwaukee CD611 offers a straightforward way to monitor the conductivity of water samples. Technical Data Measurement parameter: Conductivity Measurement range: 0 to 20,000 µS/cm Accuracy: EC: ±2% of full scale Temperature compensation: Automatic Key Benefits at a Glance For conductivity measurements in the medium-to-high range Simple and convenient operation Compact design for mobile applications Rugged build for daily use Typical Applications Water analysis Laboratory applications Water treatment Process control Frequently Asked Questions How can I measure the EC value in water quickly and easily? Simply dip it into the sample, wait a moment, and read the value straight away. What can I use the EC Pen for? Ideal for plant care, hydroponics, aquariums and general water testing. Can I use it without any prior knowledge? Yes, the device is very straightforward and ready to use straight away. How accurate are the readings in everyday use? The readings are reliable and well suited for regular checks. How often should I calibrate the device? Regular calibration ensures consistently accurate results. For which liquids can I use the meter? It is suitable for many water-based solutions where conductivity needs to be tested. Can I read the values directly on the display? Yes, the display shows the measurement results clearly and legibly. Is the Milwaukee CD611 conductivity tester also suitable for use on the go? Yes, thanks to its compact design, it fits easily into any bag. How quickly do I get a measurement result? The reading is usually displayed within a few seconds. Who is the Milwaukee CD611 particularly suitable for? For anyone who wants to check conductivity values easily, quickly and reliably.

Frequently Asked Questions What does a TDS meter actually measure? A TDS meter measures the electrical conductivity of the water, which is caused by dissolved substances. This is used to calculate a value for the total amount of dissolved solids. It is important to note that the meter only indicates the quantity of dissolved substances, not their type or purity. A high TDS value therefore does not automatically mean that the water is contaminated or unhealthy – nor does a low value guarantee that the water is free from pollutants. Measurement range: 0 to 990 ppm (mg/l) What does TDS mean? What is ppm? TDS stands for Total Dissolved Solids – that is, the total amount of all dissolved solids in the water. These include minerals, salts, metals and organic substances dissolved in the water. The concentration of these dissolved substances is given in milligrams per litre (mg/L) or parts per million (ppm). Is it easy to use, even for beginners? Yes. Switch it on, dip it in the water and read the value straight away – no prior knowledge required. How accurate are the measurement results? For everyday use, the readings are reliable and provide a good indication of water quality. Can I use the tester when I’m out and about? Yes, the device is compact, lightweight and fits easily into any bag. Who would particularly benefit from buying this? Ideal for anyone who wants to check their water quality quickly and easily themselves.

This Nutrient Meter is designed for Hydroponics, horticulture and agriculture to help you make sure that your vegetables and plants are receiving the right amount of nutrient to promote healthy growth with low to zero product waste. Keep EC/TDS in your target range to help your achieve better results.- Readings are displayed with 20 LEDs graph bar- Range 0.2 to 4 mS/cm- The alarm feature is user settable and is displayed on the LED bar- No calibration required- Auto-ON/OFF function- The auto-check feature indicates the battery level- Waterproof and floating design makes the stick an appropriate tool for stirring nutrient solutions in a bucket/tank- Graphite EC probe with ATC

Waterproof multifunction meter for measuring conductivity, TDS, and temperature. Features automatic temperature compensation, a replaceable probe, and simple calibration for various applications. Milwaukee EC59 Waterproof Conductivity, TDS, and Temperature Meter – Precision and reliability for all water quality monitoring applications. The Milwaukee EC59 combines conductivity (EC), TDS, and temperature measurements into a single, compact handheld device. By integrating multiple measurement parameters, it is ideal for users who need to assess water quality quickly and easily without carrying multiple instruments. Automatic temperature compensation ensures reliable readings even when temperatures fluctuate. Additionally, automatic 1-point calibration allows for easy setup and regular accuracy checks, making the meter suitable for both beginners and experienced users. A key advantage of the EC59 is its replaceable electrode. The electrode can be swapped out if it wears down or performance declines, thereby extending the device's service life. Its robust, waterproof housing makes it a reliable tool for use in laboratories, greenhouses, or directly in the field. By simultaneously measuring conductivity, TDS, and temperature, the Milwaukee EC59 is suitable for a wide range of water quality monitoring and control applications. Technical Specifications Measurement parameters: Conductivity | TDS (Total Dissolved Solids) | Temperature Measurement range: 0 to 3999 µS/cm | 0 to 2000 ppm TDS | 0.0 to 60.0 °C (32.0 to 140.0 °F) Resolution: 1 µS/cm / 1 ppm / 0.1 °C / 0.1 °F Accuracy (EC/TDS/Temp.): 2% of full scale | +/-0.5 °C (+/-1 °F) Temperature compensation: Automatic Key benefits at a glance Measurement of conductivity, TDS, and temperature with a single device Waterproof housing for daily use Replaceable electrode for extended service life Compact and user-friendly design Ideal for portable and stationary measurements Typical applications Water treatment Aquaculture Hydroponics Laboratory applications Environmental analysis Frequently Asked Questions Can I use the device even if I have no prior knowledge? Yes, it is easy to use and the readings can be taken quickly. What can I actually measure with this tester? You can check the water quality based on conductivity, TDS value and temperature. Is the device suitable for outdoor use? Yes, the waterproof housing protects the device when used in damp environments. Will I need to replace the probe at some point? Yes, the probe is replaceable and can be replaced if necessary. How quickly do I get a measurement result? The measurement is taken within a few seconds of immersion in water. For which applications is the device particularly suitable? It is suitable for aquariums, hydroponics, swimming pools and many other water-related applications. Is the device compact enough for use on the go? Yes, thanks to its handy size, it fits easily into a bag or toolbox.

Waterproof multifunction meter for measuring conductivity, TDS, and temperature in high ranges. Features automatic temperature compensation, a replaceable probe, and a rugged design suitable for applications in aquaculture, industry, water treatment, and food production. Milwaukee EC60 waterproof high-range conductivity, TDS, and temperature meter – Reliable water quality monitoring – anywhere you need it The Milwaukee EC60 was developed for applications requiring reliable measurement of higher conductivity and TDS levels. This compact meter combines conductivity, total dissolved solids (TDS), and temperature measurements into a single device, making it suitable for a wide range of applications. Its extended measurement range makes the EC60 particularly well-suited for samples with high salt or mineral concentrations. Automatic temperature compensation accounts for temperature fluctuations during measurement, ensuring consistent results. Its rugged, waterproof design allows for both indoor and outdoor use. Automatic 1-point calibration ensures quick setup and easy maintenance. The replaceable probe further extends the meter's service life and helps reduce long-term costs. By simultaneously measuring conductivity, TDS, and temperature, the Milwaukee EC60 offers a practical solution for users who need to monitor multiple water parameters with a single device. Technical Specifications Measurement parameters: Conductivity (High range) | TDS (Total Dissolved Solids) | Temperature Measurement range: 0.00 to 20.00 mS/cm | 0.00 to 10.00 ppt (= 10,000 ppm) TDS | 0.0 to 60.0 °C Resolution: 0.01 mS/cm / 0.01 ppt / 0.1 °C / 0.1 °F Temperature compensation: Automatic Key benefits at a glance Designed for higher conductivity and TDS ranges Waterproof housing for daily use Automatic temperature compensation Replaceable probe for extended service life Compact and user-friendly design Typical applications Aquaculture and coral farming Beverage industry Food production Swimming pool technology Hydroponics Water treatment Frequently Asked Questions Can I check the water parameters on the spot? Yes, this compact device is ideal for quick measurements on the go. What water applications is the tester suitable for? It is suitable for aquariums, hydroponics, swimming pools and many other areas. Do I need to buy several devices for different measurements? No, the tester measures several key water parameters in a single device. It combines EC, TDS and temperature measurements in a waterproof unit and offers automatic temperature compensation. Measurement parameters: Conductivity (high range) | TDS (total dissolved solids) | Temperature Measuring range: 0.00 to 20.00 mS/cm | 0.00 to 10.00 ppt (= 10,000 ppm) TDS | 0.0 to 60.0 °C How easy is it to use on a daily basis? Measurements can be taken in just a few simple steps and the display is easy to read. What happens if the probe wears out? The probe can be replaced without having to replace the entire device. Is the device splash-proof? Yes, the waterproof housing is designed for damp working environments. How quickly do I see the measurement result? The values are shown on the display within a few seconds.

Portable pH meter featuring a large LCD display, manual two-point calibration, and a high-quality pH electrode. The Milwaukee MW100 PRO stands out for its ease of use and reliable measurement results. Milwaukee MW100 PRO portable pH meter for fast and reliable results The Milwaukee MW100 PRO is a user-friendly pH meter designed for reliable pH measurements in laboratories, educational settings, water analysis, hydroponics, and swimming pool maintenance. Thanks to its simple operation, robust construction, and rapid reading acquisition, the device is suitable for both beginners and experienced users. This meter was developed for users seeking a straightforward, reliable solution for pH determination. The large digital LCD display ensures easy reading of measurements, while the intuitive interface allows users to get up to speed quickly with pH measurement technology. To take a measurement, simply immerse the probe in the sample and move it gently until the reading stabilizes. The MW100 PRO is particularly well-suited for educational and training purposes. Manual two-point calibration allows users to learn the fundamental steps of pH calibration and gain a better understanding of how pH meters work, making the device an excellent choice for schools, training centers, and laboratory exercises. To ensure reliable results, the MW100 PRO comes with a high-quality, gel-filled pH electrode. Its double-junction technology supports stable measurement performance while minimizing maintenance requirements. The included protective cap facilitates proper electrode storage and helps extend its service life. The flexible probe cable allows for comfortable operation, even with hard-to-reach sample containers. Its compact design and light weight make it ideal for mobile use and easy transport between different measurement locations. A battery level indicator provides timely notification when a battery change is required. The long battery life also ensures reliable operation during regular measurements. Technical Specifications Measurement parameter: pH Measurement range: 0.0 – 14.0 pH Calibration: Manual, 2-point Accuracy: ±0.2 pH Key Benefits at a Glance Manual two-point calibration Ideal for education and training purposes Gel-filled pH electrode with double junction Low battery indicator Compact and portable design Long battery life Typical Applications Swimming pools Water analysis Laboratory applications Research and education General pH monitoring Scope of Delivery Milwaukee MW100 PRO pH meter SE220 pH electrode with connection cable Battery User manual Frequently Asked Questions What applications is the MW100 PRO suitable for? It is ideal for hydroponics, pools, water treatment, laboratories, and many other pH measurement tasks. Can I measure the pH level quickly on-site? Yes, the device delivers fast results and is designed for portable use. Is the MW100 PRO suitable for beginners? Yes, it is easy to operate, and the readings are simple to read. What makes the included probe advantageous? The high-quality electrode ensures reliable measurements and a long service life. How long do the batteries last during normal operation? A battery life of up to 300 hours allows for extended use without frequent battery changes. Can I use the device to check nutrient solutions? Yes, the MW100 PRO is excellent for monitoring pH levels in hydroponic systems. How can I ensure the readings remain accurate? Regular calibration and proper electrode maintenance ensure consistently reliable results.