... Large Displayer with Message Indicators * Accuracy: 0.002pH BANTE922 digital pH Meter used for measuring the acidity, alkalinity and Oxidation-Reduction ... 100.0°C, 32 to 212°FTemperature Accuracy: ±0.3°C, ±0.5°FCalibration Points: 2 pointspH Buffer Options: ... ORP Electrode, pH Buffers, Temperature Probe, Power Adapter BANTE922 Digital pH/ORP Meter (Using the British pH Electrode, CE Certification)