TrolMaster Drop-in/inline Heavy Duty Nutrient pH Sensor (PPH-3) RootSpa High-output 12-inch exhaust fan for

High-output 12-inch exhaust fan for grow rooms and greenhouses

plus the Lil Boss and Lil Boss Deluxe

Ralstonia solanacearum (brown rot

Durable Build: Die-cast unibody

and ppm/EC pen

TrolMaster Drop-in/inline Heavy Duty Nutrient pH Sensor (PPH-3) RootSpa High-output 12-inch exhaust fan forTrolMaster Drop in inline Heavy Duty Nutrient pH Sensor (PPH 3) 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. *All pH probes must be stored by using the storage cap and the correct probe storage solution. If a pH probe gets completely dried out, they will no longer function correctly. Any pH probe returned without the cap and in a "dry" state" will not