https://halogensys.com/chlorine sensor/mp5-a
广告Our Free Chlorine Sensor, The MP5-A, Is Certified For NSF-61 Installations. No Waste. NSF-61 Certified. Tests 5 Parameters: Chlorine, pH, ORP, Conductivity & Temp
Types: Inline Wet/Hot Tap, Side Stream, PVC-Tee