Milwaukee C66 Waterproof Conductivity Tester with replaceable electrode

DESCRIPTION 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 nutrient. Keep EC in your target range to help your achieve better results. DESIGN FEATURES Measures conductivity and temperature with automatic temperature compensation Ideal range for hydroponics (0.00 to 10.00 mS/cm) Units in mS/cm easily convertable to ppm Factory calibrated with the ability to recalibrate if needed Replaceable electrode Fully waterproof to IP65 250 hours continuous use (3 x 1.5V batteries included)   CARE AND USE MAINTENANCE EC electrodes can develop nutrient build up over time. To miminize 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 scal