Bluelab PENCON Digital pH Meter

"The go-to for hand held conductivity meters. The Bluelab® Conductivity Pen simply tells you the amount of nutrient in your solution. Conductivity is automatically compensated with the integrated temperature sensor. Providing a compact, quick and accurate way to measure two key parameters for crop health. Teamed with our Bluelab® pH Pen you have a robust, convenient and accurate measurement system. "