Milwaukee MW802 PRO 3-in-1 pH, EC, TDS Combo Meter

SKU: 9139-MW802~ea

Milwaukee MW802 PRO 3-in-1 pH, EC, TDS Combo Meter

SKU: 9139-MW802~ea
Regular price $318.03 CAD
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Milwaukee MW802 PRO 3-in-1 pH, EC, TDS Combo Meter with ATC

The Milwaukee 3-in-1 Pro Combo meter easily and accurately measures pH, EC (conductivity) and TDS with a single meter and one single probe.  It is ideal for use with Growers, Hydroponics and Aquaponics and provides the ultimate solution for pH and nutrient management.


  • 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
  • Specialized design for Hydroponic, Aquaponic, and Greenhouse Growers


  • 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: 0.5
  • 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)

Milwaukee MW802 Manual


The MW802 PRO Combo Meter includes both a pH and EC sensor in the SE600 integrated probe. Both need maintenance. Properly maintaining your probe will give you fast, accurate results for longer. 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.

Here are four tips:
1.  Always store with the cap full of buffer or storage solution MA9015, not water.
2.  Clean the probe regularly by soaking in cleaning solution MA9016.
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.

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