Heavy-Duty Inline Nutrient pH Sensor（PPH-3） semi-gable greenhouse This allows the user to

This allows the user to directly connect low voltage devices such as solenoids

Pump for J&D Evaporative cooling system

GC-1000 DE fixtures

relay/contactor panels

Model-V is designed specifically for vegetative cultivation practices in commercial cultivation or home hobbyists cultivating without CO2 supplementation

Heavy-Duty Inline Nutrient pH Sensor（PPH-3） semi-gable greenhouse This allows the user toTrolMaster's new PPH 3 pH probe has been improved in multiple ways. The new PPH 3 features a reduced diameter protective sleeve and threaded body that will allow the probe to be installed into standard 3 4" PVC tee fittings. The PPH 3 has an improved sensor element for more stable and reliable performance. Can be used with the AMP 2 or the AMP 3 nutrient sensor module.