Product Name: High Quality Smart Sensor for Swimming Pool (PRT2121D, PRCT2121D) Model NO.: PRT2121D, PRCT2121D Type: Smart Sensor Certification: RoHS Portable: Portable Appliance: Food Analysis, Medical Research, Biochemistry Display: Multi-Parameter Water Quality Analyzer Trademark: NENGSHI Transport Package: Paper Box Specification: 25*165 Origin: Wuhan China Product Description Technical feature:·pH range: 0~14.·The temperature range: 0~80ºC.·Long life.·Sensitive response: the 95% measured value can be reached up in several seconds.·Contimuous and stable measurement.·Pressure resistance: 0.6MPa and the zeropoint E0=7pH.·The external dimension:φ12x120 or other dimension.· Itcan output directlyRS485 signal, and aslocan convert to WIFI or GPRS signal.· It is combintion sensor with pH,ORP, temperature and conductivity.· Unique structure prevents the sensor from easy pollution and blockage,Long life.· It is unnecessary to refill electrolyte, convenient use.· pH range:0~14pH;Pressure range:0.6Mpa.· Temperature range: 0~80ºC.· ORP rang: -1500mv ~ +1500mv.· Conductivity rang: 0 ~ 20000us/cm.· The external dimension of the sensor is φ25x165.· The thread is 3/4NPT, Outer tube material:PPS plastic.Selection of model:· PRT2121D pH,ORP,temperature three in one digitalsensor· PRCT2121D pH,ORP,conductivity ,temperature four in onedigitalsensor