• Range: 0 to 20,000 µS/cm
• Resolution: 100 µS/cm
• Accuracy: EC: ±2% Full Scale
• ATC: 5 to 50°C
• Units in uS/CM Easily Convertible to (PPM)
• 350hrs Continuous Use (4 x 1.5V Batteries Included)

Digital. Simple. Compact.

The Milwaukee Conductivity Pen is designed for hydroponic and other growers to help you make sure that your plants are receiving the right amount of nutrients. Keep EC in your target range to help you achieve better results.

Design Features

• Measures conductivity and temperature with automatic temperature compensation
• Ideal range for hydroponics (0 to 20,000 µS/cm)
• Units in µS/cm easily convertible to ppm
• Factory calibrated with the ability to recalibrate if needed
• 350 hours continuous use (3 x 1.5V batteries included)

Maintenance

EC electrodes can develop nutrient build-up over time. To minimize build-up, always rinse the probe in fresh tap water after every use.

Converting EC to TDS

The Milwaukee EC Pen, like all conductivity meters, provides a measure of electrically charged ions in a solution and is an absolute measure of conductivity.

EC is often converted to TDS in parts per million (ppm). Different scales include the 500 scales, 650 scales, and 700 scales. However, true PPM can only be determined through chemical analysis.

Your mS/cm reading can be approximately converted to TDS (ppm) as shown in the examples below.

• 2,000 µS/cm = 2.0 mS/cm = 1000 ppm on .50 factor scale
• 2,000 µS/cm = 2.0 mS/cm = 1400 ppm on the 442 scale or .70 factor scale

• Range: 0 to 20000 µS/cm
• Resolution: 100 µS/cm
• Accuracy: ±2% Full Scale
• Temperature Compensation: Automatic from 5 to 50°C, with ß=2%/°C
• Calibration: Manual, at 1 point through trimmer
• Environment: 0 to 50°C / 32 to 122°F; max RH 100%
• Battery Type: 4 x 1.5V Alkaline (included)
• Battery Life: Approx. 350 hours of continuous use
• Dimensions: 6 x 1.2 x 0.95 inches
• Weight: 3 ounces