Bluelab PPM Conductivity Pen Containers + Support or once plants stop growing

or once plants stop growing vertically

The motor box detaches from the mounted frame for tool-free cleaning

It requires no tools for assembly

The plug may form whiteness on them due to

you're not just improving their health

Bluelab PPM Conductivity Pen Containers + Support or once plants stop growingBluelab PPM (Parts Per Million) Pen Testing Meter for Hydroponics and Solution Measuring Bluelab PPM Pen is the latest innovation for hand held conductivity meters and the ultimate handy solution for measuring conductivity. Hydroponic growing lets you give the best care possible to your plants. The quality of care is in your control. The Bluelab ppm Pen provides a compact, quick and handy way to manage the success of your crops to ensure they have the