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Milwaukee MC311 PRO Conductivity (EC) Controller
MILWAUKEE MC311 PRO EC CONTROLLER — AUTOMATED CONDUCTIVITY MONITORING The Milwaukee MC311 PRO Conductivity (EC) Controller automatically monitors and adjusts EC levels 24/7 — set your parameters and let it do the work. Trusted by hydroponics growers and aquarium professionals who need precision nutrient management without constant manual testing.
WHY THE MC311 PRO
When your nutrient solution drifts, your plants suffer. The MC311 PRO eliminates guesswork with continuous EC monitoring, high/low alarms, and relay-controlled dosing pump compatibility — so your levels stay dialed in around the clock.
KEY FEATURES
Large digital LCD readout with visual LED alarm for instant status at a glance
±2% full scale accuracy across 0.0–10.0 mS/cm range
User-selectable high/low set points (0.8 to 2.8 mS/cm)
Simple one-point manual calibration with trim adjustment
MA812/2 hardwired EC probe included (6.5 ft cable)
Automatic Temperature Compensation (ATC): 0–50°C
Compatible with Milwaukee MP810 dosing pump (sold separately)
Complete mounting kit with probe holder included
12 VDC power supply included
SPECIFICATIONS
Range: 0.0 – 10.0 mS/cm
Resolution: 0.1 mS/cm
Accuracy: ±2% F.S.
Calibration: Manual, 1-point
Set Point: 0.8 to 2.8 mS/cm
Alarm: Activates when reading exceeds high or low set point
Temperature Compensation: Automatic, 0–50°C / 32–122°F
EC Electrode: MA812/2 (included)
Operating Environment: 0–50°C / 32–122°F; max RH 95%
Power Supply: 12 VDC adapter (included)
Power Drivers: 115 VAC, 2A, 60Hz or 230 VAC, 1A, 50Hz
Dimensions: 5.9 x 3.2 x 1.35 inches
Weight: 6.3 oz (meter only)
SKU: MC311US | UPC: 810666004301
