TrolMaster Beta-6 Legacy Beta Series Digital Controller (Day/Night Humidity 110V) 6-Inch Carbon Filters The EC/Temp electrode probe has

The EC/Temp electrode probe has a single cylinder that allows direct connection to the input terminal of the AMP-2 Sensor Board

315W CMH Drive: Runs a single 315W ceramic metal halide lamp

GrowChunks are about 3/4 inch square each and can be used in pots around blocks or alone

S/cm solution is the one best suited for general use

this formula ensures your plants stay hydrated longer between feedings

TrolMaster Beta-6 Legacy Beta Series Digital Controller (Day/Night Humidity 110V) 6-Inch Carbon Filters The EC/Temp electrode probe hasTrolMaster BETA 6 digital humidity controller The TrolMaster BETA 6 is a plug and play controller for a humidifier or dehumidifier on standard 110 120V. A 16 ft remote probe reads humidity right in the canopy instead of at the wall. It holds a 20 90% RH range with a 5% deadband for steady, accurate control. A built in photocell switches between separate day and night setpoints on its own. Day night control for grow rooms and hydroponic gardens