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Digital pH Meter 3 in 1 TDS/PH/Temperature Water Quality Tester


18% Off

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We do our best to process & ship all orders as soon as possible. Most orders are processed within 48-72 hours. We process orders between Monday-Friday and do not ship on weekends.
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Shipping MethodCostDelivery Time*
Free Standard ShippingFree7-14 Business Days (Worldwide)
Insured Shipping$3.957-14 Business Days (Worldwide)

*Please note:
These are estimated delivery times only, therefore SINBADLAB is not guaranteeing delivery dates.

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Our orders always include tracking information that is normally sent via email within 48 hours after the order has been shipped.

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About this item

  • 3-in-1 pH Meter – pH meter has a three-in-one function, which can measure PH, TDS and temperature with high precision at the same time. All-round measurement of water quality to ensure healthy water quality.
  • Automatic Calibration pH Tester – With high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. And pH meter uses a 3-point calibration method, calibrating the electrode to solutions of pH 4.00, pH 6.86, and pH 9.18,You can calibrate effortlessly to ensure the accuracy of your measurements.
  • High Accuracy Water Tester – High-accuracy algorithm chip and electrode of our digital water ph tester ensure accurate and fast response. Green Backlit LCD Design guarantees that you can read the measuring results in any condition.One-button lock reading function helps lock reading even if the tester is taken out of the sample!
  • Automatic Temperature Compensation pH Meter Digital – No longer need to pay attention to the temperature of testing liquid, meter can accurately determine the pH value of the sample in the temperature range of 0 °C-60 °C (32 °F-140 °F), so as to solve the inaccurate problem caused by changing the liquid temperature.
  • Pocket Size pH Tester Kit – You can use this Pocket Size small but powerful Pen Tester, device to measure your aquarium, pool, pond in a garden, bath tub to test the levels of Ph value, It can also be used to measure drinking water, RO System, spa, soap mixtures, food, wine, beer or any other liquids.

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.

Love what you grow

SinbadLAB provides you with the premium hydroponics equipment and services. It is our commitment to be the best indoor gardening and hydroponic store that you can trust.

  • Three-point calibration: Automatically identify calibration solutions
  • ATC function: Solve the problem of inaccurate measurements caused by changes in liquid temperature
  • Lock function: The instrument will lock the reading result, making it easy to read and record

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

Water Quality Tester Details

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.

Application Scenarios of PH Meter

ph meter 112301


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