Blue Lab Conductivity Pen
- Teamed with the PH pen the conductivity pen is a robust and accurate measurement.
- Measures conductivity and temperature
- Shows EC, CF, PPM 500 and PPM700 at a touch of a button
- black lit display
- Fully water proof
- Hold reading function
- Auto off
- Successful 30 day Calibration function
- Low battery indicator
- 1xAAA battery required
- Confirms how much nutrients are in you water
