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Model 21 – General purpose ¾” NPT pH sensor with long insertion length:
Temperature; 0~80°C. Pressure; 0~100 psi. Cable length; 3.3 metres. Ref. cell; Double junction, KNO3 and KCl/AgCl. High resistance to electrode poisoning solutions, typically those with cyanide, ammonia, sulphide and heavy metals in appreciable concentrations. Applications; A combination pH sensor for insertion in tanks and large diameter pipes using process and waste water.
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