Hanna Combo pH & ORP + Temperature Tester garden-accessories 2 HP load capacity

2 HP load capacity

20 will move any grow lights/ any hoods

providing years of trouble-free operation

Seed starter cubes

The meter can be recalibrated with digital calibration using the push buttons

Hanna Combo pH & ORP + Temperature Tester garden-accessories 2 HP load capacityHI98121 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