Benchtop 6 in 1 PHS-26C Water Quality Tester PH/EC/TEMP/ORP/CF/TDS Temp Meter PH : 0.00-14.00PH EC: 0.00-19.99ms/cm ORP : 1999~1999mV CF : 0.0-199.9CF TEMP : 0°C-100°C TDS : 10-19990ppm Range PH: 0.00-14.00PH EC:0.00-19.99ms/cm ORP:-1999-1999mV CF:0.0-199.9CF TEMP: 0-100°C TDS: 10-19990ppm Resolution PH: 0.01PH EC:0.01 ms/cm ORP: 1 mv CF: 0.1 CF Temp: 0.1°C TDS: 10 ppm Accuracy PH:±0.01PH ORP:±1mV Temp: ±0.5°C EC/CF/TDS: ±2%F.S Display : PH value: 4 digital LCD Temperature: 3 digital LCD display Power Supply : AC220V Calibration Manual two-points