Bluelab pH Pen Blue Lab - Hydroponic Aquarium pH Meter monitor using less power at the

using less power at the ignition stage and giving your plants a full spectrum light source within 5 minutes (magnetic ballast technology takes up to 20 minutes for the lamp to come up to full brightness)

shake well before use

its extraneous minerals throw off your nutrient ratios while providing smaller percentages of sugars

The non-refillable Bluelab Soil pH Probe is used to measure the pH levels of soil or media of cropping

Bluelab pH Pen Blue Lab - Hydroponic Aquarium pH Meter monitor using less power at theThe 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