Hanna HI 73127 Replacement pH Electrode For HI 98127 / 128 / 129 / 130 sap all of our systems offer

all of our systems offer great ways to experiment and learn to grow like a pro

Small amounts of micro-particles are occasionally visible in some conditions but will not affect mineral balance or system compatibility

Potassium as well as secondary Calcium and Magnesium and micro-nutrients including iron

Mode of action: Opal acts in two ways: (1) suffocation and disruption of the structure and permeability of insect cell membranes

you’ve triggered your plants’ genetic clock by suddenly shifting them to a 12-hour light cycle and changing them over to bloom fertilizer

Hanna HI 73127 Replacement pH Electrode For HI 98127 / 128 / 129 / 130 sap all of our systems offerThe HI73127 spare pH sensor makes electrode replacement quick and easy. The spare pH sensor is designed as an easy fit cartridge that locks into place, featuring two o rings to maintain a watertight seal. With no pins to line up or that can break, this sensor is ideal for quick replacements. Easy to replace. Extend the life of your Hanna pH tester with a spare pH sensor. Keep your pH measurements simple & accurate.