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In the context of RETROBRITE
A fusion of science and nature
Bluelab Toothbrush (pH probe cleaning instrument)
can get up to 2
Bluelab PH Pen Meter bone meal In the context of RETROBRITEPerfect for quick and easy pH and temperature readings direct from your solution. The Bluelab pH Pen is the preferred option for hand help pH meters. It provides a compact, quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients. Measures pH and temperature Automatic temperature compensation (ATC) Selectable units for temperature. Double junction probe (not replaceable) successful pH calibration indicator Hold