G.A.S Pro Plus Step Fan Controller with Heater Output

G.A.S Pro Plus Step Fan Controller — AC Fan & Heater Control

Arguably the best AC fan controller on the UK market — no clicking between speed steps, proper temperature-triggered fan regulation, and a second plug socket for controlling a heater alongside. The Pro Plus runs extraction and heating in unison to keep your grow room close to your set temperature without constant manual adjustment.

Why growers choose the Pro Plus Step Controller:

• Silent step transitions — no audible clicking between speed levels like cheap AC controllers; the Pro Plus switches smoothly
• Temperature-triggered fan adjustment — reads grow-room temp and ramps fan speed automatically to maintain set point
• Second plug socket for heater control — works in reverse to the fan; drops fan speed and kicks in heating when the room gets too cold
• Most efficient AC controller option — proper step control wastes less power than pure voltage dimming
• Simple interface — set temperature, set steps, walk away; no app, no firmware, nothing to crash
• Built for the UK market — G.A.S specifically designs for UK grow-room conditions and voltage

Who it's not for:

For EC-commutated (EC) fans like the HyperFan range, you need a different controller — the Pro Plus is for AC fans only. If you don't have a heater in your setup, the second socket is unused (but doesn't hurt to have). Not compatible with LED driver control — use a dedicated LED controller for that side.

See it running in our Stone shop. Drop by Unit 24, Emerald Way, Stone Business Park (ST15 0SR) to see this fixture set up, or call us on 01785 556355 (Mon–Fri, 10am–5pm) to talk through whether it's the right choice for your tent size and grow style. In stock now with 24hr UK dispatch, or choose click & collect at checkout.