Bluelab PPM Pen
Bluelab PPM Pen

Bluelab PPM Pen

$97.00   $89.99

The Bluelab ppm Pen measures conductivity and temperature and is a great way to ensure plants are receiving the proper amounts of nutrients.

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This pen features a backlit LCD display optional calibration and a successful calibration indicator a hold function low battery warning auto off function automatic temperature compensation and is fully waterproof. It operates in units of 500 or 700 ppm and has a range of 0-5000 ppm or 0-7000 ppm and accuracy to ±50ppm or ±70ppm. Requires one AAA battery (not included) and has a 12 month manufacturer’s warranty.

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