Bluelab pH Pen 5lb 5-1-1 is a blend of

5-1-1 is a blend of plant nutrients designed for hydroponic growing

Carabiner clip for hanging

So how do you find the Adsorption Yield

Measure while mixing nutrients in your reservoir

375"W x 22

Bluelab pH Pen 5lb 5-1-1 is a blend ofBluelab pH Pen Measures pH and Temperature Handheld pH meter provides a compact, quick, and handy way to manage the success of your crops to ensure maximum uptake of nutrients. A key parameter that affects nutrient uptake is whether your solution is acid or alkaline this is measured in the pH. Measures pH and temperature, with selectable units for temperature. The meter is fully waterproof, has a backlit LCD display, double junction probe (not