Bluelab PPM Conductivity Pen Oscillating and odor from a tent

and odor from a tent or to move air into a room

Nitrogen (N): 7

Promotes Biomass and Flower Density: Drives plant metabolisms towards reproduction

Without it

low maintenance

Bluelab PPM Conductivity Pen Oscillating and odor from a tentBluelab 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