Why The Bluelab Conductivity Pen?
Selectable units for conductivity (EC or PPM) and temperature
Successful calibration indicator
Backlit LCD display
Fully waterproof
AAA alkaline battery included
Directions For Use:
Step 1: Press the power button and place probe in solution. Wait for reading to stabilize.
Step 2: To hold reading press power button again.
Step 3: To change temperature or nutrient units hold the ‘Units’ button until the units flash.