Minimum Order Quantity is 3 pieces. The ultimate handy solution for measuring conductivity! The Bluelab Conductivity Pen is the latest innovation for hand held conductivity meters. It provides a compact, quick and handy way to manage the success of your crops. The Bluelab Conductivity Pen simply tells you that your plants have the right amount of nutrient in your solution and lets you know if adjustments are needed. Display options available in °C, °F, EC, ppm 500 and ppm 700. Teamed with Bluelab's pH Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health. Now, isn't that handy? Features• Measures conductivity and temperature • Selectable units for conductivity and temperature • Backlit LCD display • Calibration optional • Successful calibration indicator • Hold reading function • Low battery indicator • Fully waterproof • Auto off function • Automatic temperature compensation
