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MICRO is comprised of a high quality nitrogen and calcium base
and the chelated calcium in Plant Amp is extremely soluble
and sugar production
Manganese (Mn) : 0
Bluelab pH Pen ultrasun MICRO is comprised of aA hardy, compact pH and temperature pen Perfect for quick and easy pH and temperature readings direct from your solution Fully waterproof not just water resistant Simple two point calibration process for accuracy One year peace of mind warranty Automatic temperature compensation for accurate readings everywhere Auto off function to extend battery life 1 AAA battery included simply power on and go
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