3-in-1 High Accuracy Portable PH/mV/Temp Meter + Replaceable PH & ORP Electrodes + Temperature Probe

Specifications: Measuring Range: pH: 0.00 to 14.00pH ORP/mV: 0 to ±1999mV Temp: 0°C to 100°C Accuracy: pH: 0.01pH ORP/mV: ±0.1% F·S±1 digit Temp:±0.4°C Resolution: pH: 0.01pH ORP/mV: 1mV Temp:0.1°C Display: 4-digit LCD Power Supply: 9V Battery (NOT Included) Operating Conditions: Room Temperature: 0°C to 50°C Humidity: =95% Input resistance: 10⊃1;⊃2;O Dimension: 180mm x 83mm x 46mm Weight: Instrument only: 290g Gross weight: 570g Calibration: (values refer to a temperature of 25°C): Single point in neutral buffer solution Double point in neutral buffer solution plus an acid or alkaline buffer solution Offset regulation range: ±1pH Slope: 85 - 100% Temperature Compensation: Completely automatic with ATC probe. When probe is off, temperature is fixed at 20°C which can be modified with calibration screw.