Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water
$13.99
Measure range: 0.00 - 14.00PH
Resolution: 0.01PH
Accuracy: ±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 / 1.76oz
Calibration:
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 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.