500 ml indicator solution 350 from Heyl – residual hardness monitoring up to 5 °dH
Reliable liquid solution for detecting increased residual hardness
The Testomat 808 Indicator 350 is specially designed for detecting higher residual hardness values up to 5 °dH. With its measuring range, it helps to reliably detect changes in water quality even in more robust hardness ranges, especially where medium to significant residual hardness is present.