Residual hardness indicator 310 – colour-changing liquid solution for Testomat 808
Indicator solution for reliable indication of 1 °dH residual hardness
The Testomat 808 Indicator 310 solution has been specially designed for monitoring higher residual hardness ranges in water. With a clearly defined measurement limit value of 0.1 °dH, the indicator produces clear colour changes in the Testomats, which provide rapid feedback on the condition of the water.