MW802 pH Meter




This 3-in-1 combo meter allows you to measure pH, EC (conductivity) and TDS with a single meter and one single probe.

pH and conductivity are critical for growers. pH can effect plant nutrient and water uptake and reduce the efficiency of fertilizer, herbicides and pesticides. Managing conductivity helps growers pinpoint fertilizer and other needs.

The MW802 Combo Meter lets you easily and accurately test pH, conductivity and total dissolved solids (TDS) using a single meter and integrated probe.

Simple, portable and rugged. No more juggling multiple electrodes and wires. Automatic temperature compensation included.

The MW802 is the ultimate solution for pH and nutrient management.


The design of the MW802 is focused on simple operation and ruggedness. With a single probe, big screen, easy calibration, the MW802 is exceptionally simple to operate.

A tough meter build and a rugged but replaceable probe means that you can expect years of use.

The Combo meter offers:

  • pH, conductivity / nutrient EC, TDS (ppm) with automatic temperature compensation.
  • A replaceable, integrated pH, EC, and TDS (ppm) probe with a single 3 foot cable for easy use (SE600 probe included).
  • A fiber junction on the pH sensor to reduce contamination when measuring fertilizer solutions.
  • A light weight and portable form factor at just 5.8 ounces with battery and just over 3 inches wide.
  • A large easy to read display.
  • Factory calibration with a simple, single point manual calibration for both pH and EC.
  • A reputation for a rugged build and long life
  • Specialised design for hydroponic, aquaponic, and greenhouse growers.

Care and Use

The MW802 Combo Meter includes both a pH and EC sensor in the SE600 integrated probe.  All pH sensors have a limited life and response time gets longer with age.  EC sensors are more robust but can still be affected by residue build up. Both need maintenance. Properly maintaining your probe will give you fast, accurate results for longer.  So, be sure to order storage and cleaning solution. This will be needed to help clean and condition the pH/EC electrode before use.

Here are our top four tips.

1. Always store with the cap full of buffer or storage solution not water.
2. Clean your probe regularly by soaking in cleaning solution.
3. Calibrate after cleaning and/or storage before testing to adjust for changes in the pH and EC sensor.
4. Gently stir the probe in the sample for a faster result.


Technical Specifications

pH Range: 0.00 to 14.00 pH

EC Range: 0.00 to 6.00 mS/cm

TDS Range: 0 to 4000 ppm

pH Resolution: 0.1 pH

EC Resolution: 0.01 mS/cm

TDS Resolution: 10 ppm

pH Accuracy: ±0.2

EC/TDS Accuracy: ±2% Full Scale

Calibration Solutions: M10007 (pH 7.01) M10032 (1382 ppm) M10442B 1500 ppm

Conversion Factor: 0.68

Calibration: Manual at 1 point

Temperature Compensation: Automatic from 0 to 50°C

Probe: SE600 combination pH/EC/TDS probe

Environment: 0 to 50°C / 32 to 122°F; max RH 95%

Battery Type / Battery Life: 1 x 9V alkaline / 150 hours of use

Auto-off: After 8 minutes of non-use

Dimensions: 7.3 x 3.2 x 1.8 inches

Weight: 5.8 ounces (with battery)

Contact us

If you have any questions or require further information, please do not hesitate to email us at [email protected], call us on +44 (0)113 286 4536 or submit a contact form.