Accurate. Simple. Reliable. 24/7 pH Control. The Milwaukee MC311 PRO Conductivity (EC) controller lets you measure and adjust EC levels automatically. The MC311 EC controller automatically monitors and fine-tunes EC levels. Just set your EC parameters and let the Milwaukee EC Controller do the rest. The MC311 is preferred by people looking to dial in their testing program when they have an ongoing need to maintain levels. Common uses are nutrient tanks and aquariums. Features Accuracy The Milwaukee PRO EC controller offers an accuracy to ±2% full scale. Automation The controller provides a control range of 0.0 to 10.0 mS/cm with alarms that activate when readings are higher or lower than set point. Compatible dosing pump Milwaukee offers the MP810 dosing pump Easy installation This EC Controller comes with a complete mounting kit including a probe holder. Design features Fast easy to read current results with large digital LCD readout Accurate to ±2% full scale Simple one-point calibration with manual trimmers for easy adjustment 0.8 to 2.8 mS alarm set point range is easily accessible on the front panel Alarm activated when reading is above or below set point Comes with full mounting kit including probe holders MA812/2 hardwired EC probe 6.5' probe cables for extra flexibility 12 VDC power supply Specifications for Milwaukee MC311 PRO 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: Active when reading is higher or lower than set point Temperature Compensation: Automatic, from 0 to 50 °C EC Electrode: MA812/2 (included) Environment: 0 to 50 °C / 32 to 122 °F; max RH 95% Power Supply: 12 VDC adapter (included) Power Drivers: 115 VAC, 2A, 60Hz or 230 VAC, 1A, 50Hz Dimensions: 65.9 x 3.2 x 1.35 inches Weight: 6.3 ounces (meter only)