Feature:
1. Waterproof metal electrode and high quality material, not easy to break and durable in use.
2. Easy to use and operate, just insert the probe into the liquid and press the button for pH testing.
3. Compact structure, lightweight and portable, easy to carry and convenient for indoor and outdoor use.
4. Suitable for measuring the pH value of aquarium, fishing, swimming pool, school laboratory, food and beverage.
5. This digital pH meter features high accuracy, stable measurement, high reliable and excellent performance.
Specification:
Condition: 100percent Brand New
Item Type: pH Meter
Material: Plastic
Working Temperature: 0-50 celsius RH less than 95percent (32-122 Fahrenheit )
Measuring pH Range: 0.0-14.0pH
Resolution: 0.1pH
Accuracy: +/-0.2pH (at 20 celsius ) / +/-0.2pH
Battery: 4 x 1.5V Button Battery (Not Included)
Product Size: Approx. 3.1 x 1.6 x 15 cm / 1.2 x 0.6 x 5.9 in
Weight: Approx. 120g / 4.2oz
Operating Steps:
1. Remove the protective cover.
2. Firstly, the electrode of the pH meter should be cleaned with distilled water, and wipe the electrode with filter paper.
3. Turn on the power button located on the battery compartment.
4. Insert the pH meter into the liquid to be measured until the liquid is immersed in the ""immersion line"". If condition allowed, the solution can be immersed slightly above the ""immersion line"".
5. Stir the solution gently and wait for about two minutes, and then read the displayed value.
6. After use, the electrode should be cleaned, turn off the power and put on the protective cover.
pH Tester Calibration:
1. Put the pen into the pH6.86 calibration buffer, the height of the buffer solution should not exceed the height of the pen cover, but it must be higher than the electrode.
2. Gently stir the pen in the buffer and let it stand for about 5 seconds. When the reading is stable, stir again and let it stand for about 5 seconds. Repeat several times until the reading is stable and no longer changes. Use a screwdriver to aim the correction button (The small hole on the back), slowly adjust to a reading of 6.86, and then let it stand for about 5 seconds until the reading is stable, that is, the calibration is successful. Note: (Each measurement process needs to be rinsed with tap water).
3. Put the pen into the pH4.0 calibration buffer, the height of the buffer solution should not exceed the height of the pen cover, but it must be higher than the electrode.
4. Gently stir the pen in the buffer and let it stand for about 5 seconds. When the reading is stable, stir again and let it stand for about 5 seconds. Repeat several times until the reading is stable and no longer changes. Use a screwdriver to aim the correction button (The small hole on the back), slowly adjust to a reading of 4.0, and then let it stand for about 5 seconds until the reading is stable, that is, the calibration is successful.
pH Tester Maintenance:
1. When there is white crystal on the pen tip, this is normal, don"t be nervous, you can soak it in water for a while.
2. Remove the pen cover and turn on the power, it is normal for the digits jumping in the air.
3. Put the pen into the solution to be tested, the height of the solution cannot be higher than the height of the pen cover, but it must be higher than the electrode.
4. Regularly calibrate the PH tester. Generally, it needs to be re-calibrated every three months.
5. After calibration, gently stir the pen in the solution to be tested and let it stand for about 5 seconds. When the reading is stable, stir again and let it stand for about 5 seconds. Repeat several times until the reading is stable and does not change. The reading now is the correct pH.
6. After use, immerse the pen tip electrode in water and wash off the test solution on the electrode. Do not flush the other parts, then cover the pen cover back, and turn off the power..
Package List:
1 x pH Meter (Battery Not Included)1 x User Manual2 x pH Calibration Powder1 x Screwdriver
Note:
1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.
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