Milwaukee CD611 EC Tester Pen Shipping The LED allows for random

The LED allows for random start or soft start depending on your preference and has over-voltage

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Milwaukee CD611 EC Tester Pen Shipping The LED allows for randomDIGITAL. 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 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 S cm) Units in S cm easily convertable to ppm Factory calibrated with