PH206BD Online PH Tester Digital PH Meter with Bluetooth Connection PH+EC+TDS Water Qality Tester for Water Treatment Item Type: PH TesterModel: PH-206BD Material: ABSBluetooth: Bluetooth 4.0BLE Uses: aquariums, aquaculture, laboratories, chemical reactions, water treatment, etcRange: PH 0.00~14.00pH Temperature 0℃~80.0℃ EC 0~19990us/cm EC 0~19990ms/cm TDS 0~19990ppm TDS 0.00~19.99ppt Resolution: PH 0.01PH Temperature 0.1℃ EC 1us/cm (＜2000) 10us/cm (>1999) EC 0.01ms/cm TDS 1ppm (<2000) 10ppm (>1999) TDS 0.01ppt Accuracy: PH ±0.1PH Temperature ±1.0℃ EC ±2% F.S EC ±2% F.S TDS ±2% F.S TDS ±2% F.S Automatic temperature compensation: 0~50℃ Environment: temperature 0℃~50℃ Humidity ≤95%