Color: Yellow Measuring range: 0.00-14.00 pH Resolution: 0.01 pH Accuracy: ±0.02 pH Batteries: 2 x 1.5V LR44 button cells Automatic temperature compensation Dimensions: 6.06 x 1.26 x 0.79 in Weight: 1.8 oz   Package Includes: 1 x Digital pH meter 2 x 1.5V LR44 button cells(built-in) 3 x Packet of pH buffer powder 1 x Carrying box 1 x User manual   How to use the pH meter? -Remove the protective cap of the pH tester -Rinse the electrode with distilled water and dry it with soft cloth -Turn on the pH meter -Immerse it in the liquid to be tested (immersing level＜1.5 in) -Stir gently and wait for the reading to stabilize -Turn off the tester. Clean and dry the electrode, put on the cap.   How to calibrate the pH meter? -Turn on the pH meter -Dissolve each buffer solution in 250 ml of distilled water -Immerse the electrode into the pH 6.86 solution. -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.   Notes: 1. Clean the electrode with distilled water, and gently wipe it with a clean, soft cloth every time before and after use. 2. Ensure immersing level is below 1.5 in while testing. 3. A pack of calibrated powder should be dissolved in 250ml distilled water. Fluid can be sealed and stored in 10-20 ℃ for 3 months. Avoid direct sunlight. 4. Follow the directions carefully while using to avoid damaging.
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