GDMONIN Digital PH Meter PH Meter 001 PH High Accuracy Water Quality Tester with 014 PH Measurement Range for Household Drinking Pool and Aquarium Water PH Tester Design with ATC

How to Measure pH Value? STEP1: Remove the protective cap from the handheld pH meter. Rinse the electrode with distilled water and let it dry STEP2 Press the ON/OFF button to turn on the unit. Dip the electrode in the target solution, making sure the whole electrode is submerged. STEP3 Stir the solution gently and wait for the value to stabilize. The LCD screen will display both the temperature and pH. Calibration: Turn on the pH meter Dissolve each buffer solution in 250 ml of distilled water Immerse the electrode into the pH 6.86 solution.(under the temperature of 25?) Press the “CAL”(calibration) button for 5 seconds and release -Display screen will start flashing “6.86” -Wait it until the display screen stops flashing. Rinse the electrode with distilled water and make it dry with filter paper. Repeat the above steps with 4.01 pH buffer powder and 9.18 pH buffer powder. Specifications: Measure range: 0.00- 14.00PH Resolution: 0.01PH Accuracy: ±0.01 PH Power Supply: 2*1.5V (LR44 Button cell) (Included) Operating Temperature: 0°F - 60°F Dimension: 155mm* 31mm * 18mm / 6.10”×1.22”×0.70” Weight: 50g / 1.76oz Package Includes:  1 x PH Meter  1 x Carrying case  3 x PH buffer powder  1 x User's manual