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These professional hydroponic nutrients contain
Combination (full-cell) pH electrode for field applications with the HI 9815 Turtle pH transmitter
Derived from: Fishbone Meal
120V/240V capable
Does not include outer housing
Hanna Combo pH & ORP + Temperature Tester commercial-lighting-fixtures These professional hydroponic nutrients containHI98121 is a waterproof meter that measures pH, ORP and temperature. The housing of this tester has been completely sealed against humidity and are designed to float. Electrode replacement with the stainless steel round connector means there are no pins to bend or break during replacement. When the cloth junction becomes clogged and response time is sluggish, simply pull out 3 mm (1 8") to clear the clogging which will improve response time and
US$ 55.89
US$ 101.50
