Calibration Solution Meytec ORP 475 mV – 60 ml

The ORP 475 mV calibration solution in a 60 ml pack is intended for the regular calibration of ORP electrodes in automatic dosing stations, pH/redox control systems and portable meters. The certified value of 475 mV (±5 mV at 25 °C) ensures repeatable and accurate calibration results.

A correctly calibrated ORP electrode is a key element for the automatic control of pool disinfection – it keeps the ORP in the optimal range of 650–750 mV, which guarantees effective disinfection without an excess of chlorine. The larger 60 ml pack reduces the average cost per calibration and is economical for operators with a higher calibration frequency.

After opening, protect the solution from direct sunlight and close it immediately after use. When stored correctly, the solution maintains a stable ORP value throughout its shelf life.