Bluelab pH Pen Blue Lab - Hydroponic Aquarium pH Meter monitor O3 doesn't just mask odors

O3 doesn't just mask odors like mere air fresheners - it neutralizes odors at the source

Re-apply after rain or damp weather

but only in a way that makes more efficient use of the root zone so you get larger harvests

CO2 equipment or air conditioning) and one for during lights off (for example a room heater)

it makes sure the

Bluelab pH Pen Blue Lab - Hydroponic Aquarium pH Meter monitor O3 doesn't just mask odorsThe Bluelab pH Pen is the latest innovation for hand held pH meters and is the ultimate handy solution for measuring pH. Hydroponic growing lets you give the best care possible to your plants. The quality of care is in your control. The Bluelab pH Pen provides a compact, quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients. Teamed with our Bluelab EC Pen or Bluelab ppm Pen, you have a handy, convenient and