Acidity Meter, Ph Meter, Portable Water Quality Detection Pen

Clean the electrode with distilled water before and after each useBe careful with the glass probe, as it may be a bit fragile when you use it.Remember to wipe gently with a clean soft cloth when you are done, and then close the lid.Open the battery box or replace the battery, and then need to recalibrate the meterTest range: 0.0-14.0PHAccuracy: 0.1pHError: +/-0.1pHBattery: 2 x 1.5VTemperature compensation: 0 Celsius-50 CelsiusOperating temperature: 0Celsius-50CelsiusDebug: 1PointSize: 150 x 29 x 17mmWeight: 110gcolour:YellowMaterial:plasticPackage Contents:1 x PH Test pen1 x screwdriver2 x PH calibration powder1 x English manualOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.