Milwaukee MC811US MAX pH/EC/Temp Monitor

Milwaukee MC811US MAX pH/EC/Temp Monitor

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Why Guard when you can Monitor! The Milwaukee MC811 MAX pH/EC/Temp Monitor lets you monitor your pH/EC/Temp levels 24/7 automatically.

Comments From Field Testing

"I run this unit 24/7 and have not had any problems for the past two months. I can monitor 24/7, point a camera on it and connect to my phone."

"Easy to calibrate."

"Using this now, far less expensive than what my friends paid ... I recommend this to any serious grower."


The MC811 MAX Monitor automatically monitors and displays pH/EC/Temp levels. Just calibrate the parameters and let the Milwaukee MAX Monitor do the rest.

The Milwaukee MC811 MAX pH/EC/Temp Monitor is preferred by people looking to know 24/7 what their pH and nutrient levels are on an ongoing basis. Common uses are nutrient tanks, Hydroponics and aquariums.

The Milwaukee MAX pH/EC/Temp Monitor offers:


The Milwaukee MAX Monitor offers an accuracy to ± 0.2 pH with two point manual calibration, EC accuracy of ±2% Full Scale and ±0.5 °F (0.3 °C) temperature accuracy.


Just calibrate the parameters and begin to monitor 24/7!

Easy installation

The MC811 MAX pH/EC/Temp Monitor comes with a complete mounting kit including a probe holder.

Design features

  • Fast easy to read current results with 3 large digital BACKLIT LCD readouts.
  • Accurate to ±0.2 pH (0.0 pH to 12.0 pH).
  • Accurate ±2% Full Scale EC.
  • External Switch atop the unit converts EC conductivity to EC using 0.5 or 0.7 conversion factor.
  • Simple two-point pH calibration and one point EC, for increased accuracy with manual trimmers for easy adjustment.
  • Gel-filled, double junction MA911B/2 (included) lab grade pH electrode for low maintenance and high performance.
  • 6.5 feet probe cables for extra flexibility when testing.
  • 12 VDC power supply.