Skip to product information
1 of 7

YIERYI pH Meter, Digital 4-in-1 pH ORP H2 Temp Meter, Hydrogen Tester with ATC, 0.01 Resolution High Accuracy pH Tester for Drinking Water

YIERYI pH Meter, Digital 4-in-1 pH ORP H2 Temp Meter, Hydrogen Tester with ATC, 0.01 Resolution High Accuracy pH Tester for Drinking Water

Regular price $30.00 USD
Regular price Sale price $30.00 USD
Sale Sold out
Shipping calculated at checkout.


We offer free shipping, directly to your door. Delivery takes 5-7 business days.


View full details

Detailed Descriptions

4-in-1 Water Quality Test

4-in-1 pH tester, which can measure PH, ORP (Oxidation-reduction potential), H2 (Hydrogen content), and Temp value with high precision at the same time, simply press the {MODE/CAL} key to switch the readings of pH, ORP (mV), and H2 (ppb/ppm).

3-Point Calibration

The pH meter features a high-sensitivity glass probe, offering a complete measurement range from 0 to 14 pH with a remarkable 0.01 pH resolution. To ensure measurement accuracy, our pH meter employs a meticulous three-point calibration process, which involves precise adjustments using pH solutions at 4.00, 6.86, and 9.18. Our ORP and H2 meters come pre-calibrated for your convenience.

pH Meter with Automatic Temperature Compensation

Temperature will affect the reading level, and automatic temperature compensation can ensure that you get the best reading. compared with other pH meters for water, there is only a range of 0°C-50°C. our digital pH meter has a better range of 0°C-60°C (32°F-140°F). therefore, it can solve the possible errors caused by the perfect change of liquid temperature, so as to make the pH reading more accurate.

Automatic Power-Off Function & Backlit Display

The automatic power-off function turns off the power after 5 minutes without any operation to save power. The pH meter features a green backlit LCD to help you obtain the measurement results clearly in any situation. Press the "HOLD/TEMP" key to lock the reading, helping to easily record the reading.

pH Tester with Wide Application

Ideal for household and laboratory pH testing applications, including drinking water, swimming pool, water treatment, pond, water purification, aquariums, hydroponics, laboratory, etc.

How to Calibrate the pH Meter?

1. Before calibration, prepare 3 beakers containing separately 250ml of pH 4.00/pH 6.86/pH 9.18 standard solution.
2. Rinse the electrode with clean distilled water and wipe it dry. Turn on the pH meter and adjust to pH mode.
3. Immerse the electrode into the pH6.86 buffer solution, wait for the value to stabilize, press "CAL" for 5s, and the screen will display "CAL", when pH6.86 flashes 3 times, the calibration of pH6.86 is finished.
4. Repeat the above steps to calibrate pH4.00 or pH9.18.

  • LCD Backlit Display

    The pH meter adopts the green backlight LCD design, which can easily read the test results regardless of the light; Press and hold the "HOLD/TEMP" button for 5 seconds to convert to Celsius or Fahrenheit degrees.

  • High Accuracy Electrodes

    The role of the reference electrode is to determine the potential difference between the measuring electrode and the liquid by comparing it with the measuring electrode, and calibrate it to ensure accurate measurement results.

1 of 3