How to Calibrate the PH Meter?

1. Before calibration, add the pH4.00/pH6.86/pH9.18 buffer powder into beaker with 250ml of distilled water, then stir until the powder has completely dissolved.

2. Press the ON/OFF button to turn on the meter; Adjust to PH mode;

3. Put the electrode into pH4.00/pH6.86/pH9.18 standard solution, waiting for the readings to stabilize (usually 5~10 Seconds);

4. Press and hold the MODE/CAL button and release after 6 seconds;

5. Until pH4.00/PH6.86/PH9.18 readings are no longer flashing, finish.

How to make a standard calibration solution?

Completely empty the powder into a clean 250ml glass beaker.

Add 250ml of PH Buffer Powder to the beaker.

Still until the powder has completely dissolved.

PH solution accuracy is ±0.01PH.

Power on→Press the MODEL/CAL button → Adjust to pH mode→Put the electrode into pH4.01 / pH6.86 / pH9.18 standard solution→Press and hold the MODEL/CAL button for several seconds→The value of pH4.01 / pH6.86 / pH9.18 is no longer flashing, and the calibration of pH4.01 / pH6.86 / pH9.18 is completed.

Measuring range: pH:0.00-14.00pH; TDS: 0-19990ppm; EC: 0-19990muS/cm
Resolution: 0.01 pH; 1ppm; 1muS/cm; 0.1℃; 0.1degF
Accuracy: pH: +/-0.01 pH; TDS/EC: +/-2%; Temp: 0.5℃
Batteries: 3 * 1.5V LR44 button cell (not included)
Temp.: 0.1-60.0℃; 32.0-140.0degF
Calibration: pH: three points automatic calibration (6.86 & 4.00 & 9.18pH); TDS: 1413muS/cm; EC: 1413muS/cm
Auto shut off: 5 Minutes

LCD Backlight Design

The backlit LCD design makes it easy to read test results regardless of the light. A gentle green backlight protects your eyes from glare.

High Accuracy Electrode

High Sensitivity Glass Probe of the ph meter for water is made of glass-sensitive film (25MQ) with low resistance, which greatly increases its Sensitivity and Accuracy to 0.01.

Sensitive Button

The sensitive button design is user-friendly, support one-tap switch from PH to TDS.

Batteries Included

Three batteries can be used for several months. The meter comes with three extra batteries. The five-minute auto power-off design can extend battery life.