... with Message Indicators * Accuracy: 0.002pH BANTE922 digital pH Meter used for measuring the acidity, alkalinity and Oxidation ... into indicatedcalibration solution, press ENTER key and meter is automatically calibrated.Auto-Buffer Recognition:During calibration ... ORP Electrode, pH Buffers, Temperature Probe, Power Adapter BANTE922 Digital pH/ORP Meter (Using the British pH Electrode, CE Certification ...