G.A.S Day & Night Dehumidifier Controller

G.A.S Day & Night Dehumidifier Controller

A simple but genuinely useful dehumidifier controller that lets you set different target humidity levels for day and night cycles. Use the dials to set your preferred humidity for lights-on and lights-off periods, plug your existing dehumidifier into the controller, and let it handle the rest. Designed for growers who already own a dehumidifier and just need smart on/off control.

Why growers choose the Day & Night Dehumidifier Controller:

• Separate day and night humidity targets — different humidity for lights-on (veg) vs lights-off (critical during late flower)
• Works with your existing dehumidifier — plug it into the controller, dehumidifier becomes automated
• Simple dial-based interface — no app, no firmware, no complex menu — just set and forget
• Prevents night-cycle bud rot — humidity rises overnight without AC running; controller catches it
• Budget-friendly alternative to a full environment controller — does one job properly

Who it's not for:

If you want integrated control of fans, heaters, humidifiers, dehumidifiers and lights from one unit, step up to the G.A.S Enviro Controller V2. You'll need to provide your own dehumidifier — this is the controller only. The dial-based interface is simple but not precise to the exact percentage; if you need tight humidity accuracy, go for a digital controller.

Available to collect from our Stone shop at Unit 24, Emerald Way, ST15 0SR — or ships the same working day from our UK warehouse. Not sure if this is the right fit? Give us a ring on 01785 556355 or email sales@roots2riches.com — we're growers ourselves, happy to help.