Testomat 808 Indicator 303 – Precise Residual Hardness Measurement

Original indicator solution for determining residual hardness

The Testomat 808 Indicator 303, 500 ml bottle from Heyl, is an original indicator solution for measuring residual hardness through color change with the Testomat 808 and Testomat F-BOB. It provides clear results at a threshold of 0.1 °dH.

Indicator 303 is designed for residual hardness monitoring. With minimal maintenance, it enables safe process control.

Highly Precise Residual Hardness Monitoring

The Testomat 808 Indicator 303 from Heyl is a specially developed original indicator solution for precise measurement of residual hardness in water samples through a clearly defined color change. It is optimally calibrated for use with the Testomat 808 and Testomat F-BOB and delivers reliable measurement results at a threshold of 0.1 °dH.

Thanks to its exact adaptation to the measurement methodology of the devices, it ensures high measurement accuracy and reproducibility. Deviations can be detected early, effectively preventing limescale formation.

Manufacturer Warranty and Original Indicators

The manufacturer’s warranty for Testomat® devices can only be guaranteed when using Heyl original indicators.