German water parameter testing specialist Dr A. Kuntze has announced the extension to salt water applications of its automatic sensor cleaning (ASR) technology, which converts water molecules electrochemically into hydrogen and oxygen. This was not possible previously because in high salt concentrations, corrosive chlorine gas is produced instead of oxygen.

With its new Zirkon Des Pool sensor, Kuntze says it has developed a sensor that can withstand those corrosive conditions and also shows excellent measuring results.

The company has run four trials over periods of 4 to 12 weeks comparing the new sensor against a competitor’s system using mechanical cleaning in salt water applications.

At chloride concentrations of 2–2.5% and temperatures of 38–45°C, Kuntze says its Zirkon Des Pool sensor has proved its reliability and low maintenance requirements.

Even daily use of ASR over a period of three months did not harm the sensor’s electrodes, according to the company.