PH Meter Feature:

4-in-1 pH Meter: Yieryi pH tester can simultaneously measure pH, ORP, H2, and temperature, with a large and wide measurement range, providing comprehensive water quality information. Very suitable for measuring drinking water, swimming pools, ponds, beer brewing, kombucha, aquariums, hydroponics, laboratories, and food processing.

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 can influence reading accuracy, but our digital pH meter features automatic temperature compensation to ensure the most precise readings. Unlike some other pH meters for water with a limited range of 0°C-50°C, our pH meter excels with a broader range of 0°C-60°C (32°F-140°F). This expanded range effectively mitigates potential errors resulting from fluctuating liquid temperatures, enhancing the accuracy of pH readings.

Automatic Power-Off Function and Backlit Display: Our pH meter includes an automatic power-off feature, which conserves power by turning it off after 5 minutes of inactivity. Additionally, the pH meter is equipped with a green backlit LCD, ensuring that measurement results are clearly visible in all conditions.

Reading Lock Function: Press the "HOLD/TEMP" key to easily lock the readings, making it easy for you to accurately record your measurements, and press again to unlock it.

Only through electrolysis, the hydrogen in the water will be released to form H2, so tap water or drinking water can not be directly measured to PPM or PPB, please electrolyze the water and then measure it, or measure the water in the hydrogen-rich cup.

Specifications:

pH Range: 0.01～14.00pH

Resolution: 0.01pH

Accuracy: ±0.005pH

ORP Range: ±999mV

Resolution: 1mV

Accuracy: ±2mV

H2 Range: 0-2400ppb; 0.001-2.400ppm

Resolution: 2ppb; 2ppm

Accuracy: ±10ppb; ±10ppm

Temperature Range: 0.1-60.0℃ 32.0-140℉

Resolution: 1℃/℉

Accuracy: ±0.5

Operation Environment: 0-60℃(32.0-140℉); RH100%

Waterproof Level: IP67

Battery: 3 * 1.5V(LR44)(Not include)

Screen Size: 33 * 24mm

Size Weight: 183 * 37 * 37mm(7.2 * 1.5 * 1.5in)/90g

Display: LCD digital display

Backlight: Backlight Optional

Temperature: Automatic Temperature Compensation 0-60℃

HOLD: Data lock

Automatic Shut-off: 5minutes

Attention: Clean the electrode after using

PH calibration: One point or two points or three points automatically. If the meter can't identify the solution, change the electrode, or contact us.

Package List:

1 * 4 in 1 Water Quality Tester （not incl the retail box）

1 * User Manual

FQA

Q: What type of battery does the product use? Are batteries shipped?
A:
Products generally do not ship batteries, and online logistics cannot transport batteries. The type of battery is: 3 * 1.5V (LR44) button battery. Please buy it locally.

Q: Is it necessary to calibrate the function of the instrument to measure "hydrogen"?
A: The product has been calibrated before leaving the factory. The product cannot calibrate the function of the instrument to measure "hydrogen" by itself.

Q: Why does the "hydrogen" instrument measuring tap water display "0"? When measuring the "hydrogen" of electrolyzed water, the value will continue to change over time?
A: Under normal circumstances, the hydrogen content of water is "0", and the measurement data shows "0", which is correct. Need to use a hydrogen-rich cup after electrolysis, and then measure. The hydrogen content is relatively small, and the measurement data will also display "0". Hydrogen is very easy to volatilize, and the value will continue to decrease over time.

Q: What is the unit for measuring hydrogen? How to convert measurement units?
A: The factory default measurement unit of the instrument is ppb. When the instrument is turned on, press the FUN" key, and the measurement mode will be switched between ppb and ppm. (1ppm =1000ppb)

Q: What should I do if the received product is damaged, cannot be calibrated, cannot work normally, and the meter cannot recognize the solution?
A: Please protect the product and contact us in time to report product problems