Bluelab EC/PPM/CF Pen Meter - Calibrate Your Nutrient Solution
The Bluelab EC pen measures how much food your plant has available to it.
An easy to read digital display makes it simple to check the EC, PPM or CF
The compact, quick and handy way to manage the success of your crops to ensure they have the nutrients they need.
Specially developed as an affordable and effective option for hobby gardeners.
Measures conductivity and temperature
Selectable units for conductivity and temperature
Backlit LCD display
Successful calibration indicator
Low battery warning
Auto off function
Automatic temperature compensation
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