Bluelab pH Pen Size:Bluelab pH Pen Long service life

Long service life

particulates

Timer: not supplied

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

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

Bluelab pH Pen Size:Bluelab pH Pen Long service lifeLab 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