GAS Enviro Controller v4 26AMP Environment Humidity Temperature AC EC Fan Control
GAS Enviro Controller v4 26AMP Environment Humidity Temperature AC EC Fan Control
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Order by 3pm Mon–Thu for next-working-day delivery · FREE delivery over £50 · Free Wembley pickup
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Description
Full climate automation for EC-fan grow rooms
The G.A.S Enviro Controller V4 is an advanced environmental controller that automates temperature, humidity and EC fan speed in a grow tent or grow room, holding conditions stable through vegetative growth and flowering without constant manual tweaking. Built specifically for EC fans, it adjusts intake and extraction speed automatically and gives you four programmable sockets to run heaters, humidifiers, dehumidifiers and lighting from one unit. An upgraded plug-and-play sensor probe and clear LCD display centralise control of the whole room.
What's Included
- 1 x G.A.S Enviro Controller V4
- 1 x Temperature, Humidity and Light Sensor Probe
Key Benefits
- Automatic EC fan control of intake and extraction speeds
- Built-in fan balancer for stable, balanced airflow
- Temperature and humidity regulation to set targets
- Four programmable sockets for heaters, humidifiers, dehumidifiers and lighting
- Separate day and night settings for tailored climate control
- Plug-and-play replaceable probe plus a real-time LCD display
- Wide fan compatibility with Systemair EC, Rhino Ultra EC and Hyperfan V2 (extra cable)
Tame the temperature and humidity swings that stall growth
Powerful lighting and ventilation push a room's temperature and humidity around fast, and without automated control that shows up as heat build-up, humidity spikes during flowering, or slowed vegetative growth from inconsistent conditions. The Enviro Controller V4 constantly monitors the room and balances intake and extraction fan speed to hold steady airflow, while the programmable sockets keep supporting equipment working together for stronger uptake, rooting and yield.
How to Use
- Install the controller somewhere accessible in the grow room.
- Connect compatible EC intake and extraction fans to the controller.
- Place the sensor probe at canopy height for accurate monitoring.
- Plug heaters, humidifiers, dehumidifiers or lighting timers into the programmable sockets.
- Set your day and night temperature and humidity targets in the menu.
- The controller then adjusts fan speed and connected equipment automatically to hold those conditions.
Technical Specifications
- Maximum total load: 26A
- Maximum load per output: 2200W
- Recommended lighting limit: 2400W total across sockets
- Programmable sockets: 4
- Power lead length: 1.2m
- Sensor probe length: 3.8m
- Controller dimensions: 20cm x 9cm
- Fan type: EC fans only (AC fans such as RVK need a different controller)
- Verified compatible fans: Systemair EC, Rhino Ultra EC, Hyperfan V2 (with additional cable)

Free next-day delivery on orders over £50 (order by 3pm Mon–Thu). Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.

