Bluelab pH Pen Size:Bluelab pH Pen at the transition into bloom

at the transition into bloom

Used correctly it adds weight and density while boosting essential oils

drives fresh explosive root growth and helps protect against common root diseases

Bright backlit display that reads easily in a dim tent or under coloured LEDs

Type: bloom booster / flowering stimulant

Bluelab pH Pen Size:Bluelab pH Pen at the transition into bloomLab grade pH accuracy in a waterproof pen that floats The Bluelab pH Pen brings the accuracy growers rely on across the Bluelab range down into a compact handheld meter. It reads pH across the full 0. 0 to 14. 0 range to + 0. 1, uses automatic temperature compensation so readings stay honest as your reservoir warms and cools, and is fully waterproof and floats so an accidental drop in the tank is no drama. A backlit display keeps it readable under dim