Milwaukee CD611 Digital Conductivity Pen (EC) for Hydroponics

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 to 20,000 µS/cm) Units in µS/cm easily convertable to ppm Factory calibrated with the ability to recalibrate if needed 350 hours continuous use (3 x 1.5V batteries included)