PH Meter 0.01 PH Battery Powder High Precision Water Quality EC Tester 0-14 PH Measurement Range For Aquarium Swimming Pool Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test

Specifications:Measure range: 0.00 - 14.00PHResolution: 0.01PHAccuracy: 0.01 PH (at 25 )Power Supply: 2*1.5V (LR44 Included)Operating Temperature: 0 - 80 (32 - 176 )Dimension: 155mm* 31mm * 18mm / 6.10 1.22 0.70 Weight: 50g / 1.76ozCalibration:1. Turn on the pH meter.2. Dissolve each buffer solution in 250 ml of distilled water.3. Immerse the electrode into the pH 6.86 solution (under the temperature of 25 ).4. Press the CAL (calibration) button for 5 seconds and release - Display screen will start flashing 6.86 - Wait for it until the display screen stops flashing - Rinse the electrode with distilled water and make it dry with filter paper.5. Repeat the above steps with 4.01 pH buffer powder and 9.18 pH buffer powder.Note:Calibration is required in the following conditions.- Lengthy periods of inactivity- Very frequent use- The testing accuracy requirement is very high- The cal key was pushed and the electrode was exposed to air for an extended period of timePackage Includes:1 pH Meter3 pH Buffer Powder1 Use