Lutron PH-222 PH Meter


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Lutron PH-222 PH Meter is a Pen type of digital pH meter, all in one, pH electrode is included, easy for general-purpose application. PH meter has a built-in temperature sensor, and ATC ( auto temperature compensation ).

Applications: Aquariums, Beverage, Fish hatcheries, Food processing industries, Photography, Laboratories, Quality control, Schools & Colleges, Swimming pools, Water conditions.

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The Lutron PH-222 PH Meter is a pen-type digital pH meter with a built-in temperature sensor and automatic temperature compensation (ATC). It has a measurement range of 0 to 14 pH and a resolution of 0.01 ph This PH tester has a temperature range of -5 to 80°C (23 to 176°F) with a resolution of 0.1°C/0.1°F.

Features Of Lutron PH Meter:

  • pH4, pH7 standard solution are standard accessories
  • Easy to change the pH value of the electrode
  • Temperature measurement ℃ and ℉
  • IP67, water proof and protection.
  • Auto calibration is done for pH 4, pH 7 or pH 10 or other value.
  • Very high input impedance.
  • Data hold function for freezing the desired value obtained.
  • Provided with auto power off.
  • Records maximum and minimum value with recall.
  • 100 point data logger with recall is available
  • Microcomputer circuit, intelligent function, high accuracy.
  • Compact in size, light weight.
  • Power supply of DC 1.5 V battery ( UM4/AAA ) x 4 Pieces.

Additional information

Weight 1 kg




Measuring Parameters

pH and Temperature

Measuring Range

0 to 14 pH and -5 to 80 ℃( 23 to 176℉ )


0.01 pH and 0.1°C/0.1°F


± 0.02 pH (After calibration, meter without PE-12 electrode), ± 0.2 pH (After calibration, meter with PE-12 electrode) Temp. ± 0.8°C / ± 1.5°F

Operating Temperature

Meter: 0 to 60°C (32 to 140°F), pH electrode: -5 to 80°C (23 to 176°F)

Operating Humidity

Less than 80 % RH

pH Input Impedance

10^12 ohms.

Sample Time

Approx. 0.8 second

pH Calibration

pH 7, pH 4 or pH 10, 3 point calibration ensure the best linearity and accuracy.

Power Supply

DC 1.5 V battery ( UM4/AAA ) x 4 Pieces.

Power Consumption

Approx. 4.8 mA


186X40X32 mm

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