Digital PH Meter Water Tester Get accurate pH measurement easily This pH meter the perfect device for your testing of the acidity or alkalinity of liquids. It is very easy to use - just immerse the electrode to get accurate, fast readings. How to Calibrate STEP 1: Turn open pH meter, Clean the electrode in distill water STEP 2: Immerse the electrode in pH 6.86 standard buffer solution STEP 3: Press the "CAL" button. Wait until the display digital is 6.86pH and steady STEP 4: Clean the electrode in distill water and dry it, immerse the electrode in Ph 4.00 standard buffer solution STEP 5: Press the "CAL" button. Wait until the display digital is 4.00pH. Then complete pH 4.00 calibration STEP 6: Test calibration by inserting electrode into pH 9.18 buffer solution, gently swirl electrode until digital display stabilizes. Display should read between 9.16 and 9.20. Specifications: Measuring range:0.00-14.00 pH Resolution:0.01 pH Accuracy::0.01 pH Batteries:2X 1.5V LR44 (included) Automatic temperature compensation: 0-50℃(32-122℉) Dimensions:15x2.5x1.3cm/6x1.1x0.5 inch Net Weight:52g/1.83 oz Package Includes: 1 x PH Meter 3x buffer powders 1 x Carrying case 1 x User's manual Tips The glass bulb of the electrode is fragile. Treat it carefully. Don't touch it by hard tools and fingers, suck the water on it gently when cleaning Clean the electrode with distilled water every time before and after use Open the battery case or replace battery, then need to recalibrate the meter
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