GAS EC2 Fan Controller | EC Fan Speed Control and Balancer for Grow Room Ventilation

Small Controller. Complete EC Fan Control.

The GAS EC2 is a compact EC fan controller for growers who want precise control over intake and extraction ventilation without running a full climate management system. Plug it into your EC fan, set your maximum and minimum speeds for the extraction side, and the EC2 handles the rest. The intake fan follows automatically and holds the negative pressure balance you've set, so you don't adjust each fan separately. No power pack, no extra wiring.

Fan balancing and negative pressure control sit in one compact unit that draws power straight from your EC fan. If you want clean EC fan management without temperature automation, that's what the EC2 does.

Key Benefits

• EC fan control and balancing. Runs both intake and extraction EC fans from a single unit, keeping ventilation in sync without adjusting each fan independently.
• Set maximum and minimum fan speeds. Define the operating range for your extraction fan. The intake fan follows automatically across the full speed range.
• Negative pressure control. Dial in the negative pressure your space needs to stop odours escaping, without a separate balancer unit.
• No power pack required. The EC2 draws power from your EC fan through the active cable. Fewer components and one less point of failure.
• Direct EC fan connection. Plugs into all EC fan ranges via the included active cable. No adaptor needed for compatible fans.
• Compact design. Small footprint for tents and rooms where controller space is tight.
• 12-month warranty. Backed by GAS manufacturer warranty.

How It Works

The EC2 connects to your EC fan through the active cable and takes its operating power from the fan. You set maximum and minimum speeds for the extraction fan on the controller, then set your target negative pressure. The EC2 keeps the extraction fan inside that range and adjusts the intake fan to hold the balance. The result is a sealed, odour-controlled space with balanced airflow, run from one compact controller with no additional hardware.

System Features

• Control type. EC fan speed control and balancing.
• Fan balancing. Integrated intake and exhaust balancing with negative pressure control.
• Speed settings. Adjustable maximum and minimum extraction speeds. Intake follows automatically.
• Power source. Powered from the EC fan via active cable. No power pack required.
• Compatibility. Plugs directly into all EC fan ranges.
• Design. Compact, suits grow tents and grow rooms.
• Warranty. 12 months.
• Manufacturer. GAS (Global Air Supplies).

Applications

• EC fan speed control for grow rooms. Set and hold precise speeds for intake and extraction without adjusting each fan independently.
• Grow room negative pressure management. Built-in pressure control keeps the space sealed against odour escape without a separate balancer.
• Hydroponic ventilation automation. Balanced intake and extraction airflow for stable temperature and humidity across the crop cycle.
• Grow tent EC fan controller. Compact enough for tent setups where space is limited.
• EC fan balancing system. Synchronises intake and exhaust automatically once the extraction range and negative pressure are set.
• Simple EC fan control upgrade. A straightforward step up from manual speed controllers when moving to EC fans.

What Sets It Apart

The EC2 does the core job of EC fan control and stops there. Fan balancing, negative pressure control and an adjustable speed range in a compact unit that needs no power pack and plugs straight into your fan. If you don't need temperature automation or auxiliary equipment control, you don't pay for it. It's also the most compact controller in the GAS range, which makes it the practical pick for tents and smaller rooms where the controller footprint matters.

Pairing the EC2 with the Revolution EC

The GAS EC2 pairs directly with the Revolution EC Silent Inline Fan by Systemair for a complete, balanced EC ventilation system. The Revolution EC delivers high static pressure, quiet operation and precise variable speed response. The EC2 runs both intake and extraction fans, sets negative pressure and keeps the system balanced. Together they make a ventilation setup that's quiet, efficient and controlled from one compact unit.

Technical Specifications

• Control Type. EC fan speed control and balancing
• Fan Balancing. Integrated intake and exhaust, with negative pressure control
• Speed Control. Adjustable max and min for extraction. Intake follows automatically.
• Power Source. Powered from EC fan via active cable. No power pack required.
• Compatibility. All EC fan ranges
• Design. Compact
• Warranty. 12 months
• Manufacturer. GAS (Global Air Supplies)
• Product Weight. 0.8 kg
• Shipping. Free to VIC, NSW, QLD, SA and ACT

Frequently Asked Questions

What fans does the EC2 work with?

Any EC fan. It plugs into the fan's active cable and takes its power from there, which is why there's no power pack in the box. It won't drive AC-motor fans. Those need an AC controller instead, so check which motor your fan has before you buy if you're retrofitting.

Does the EC2 control temperature?

No. The EC2 sets fan speed and balance, not climate. You set a maximum and minimum speed for extraction and the intake follows to hold your negative pressure, but nothing changes automatically when the room warms up. If you want fan speed to respond to temperature, look at the EC5 or the Enviro V2 instead.

Can it run both my intake and exhaust fans?

Yes, and that's the main reason to buy it. You set the extraction speed range and the EC2 drives the intake fan to match. That balance is what holds negative pressure in the room and keeps odour from escaping, so you don't need a separate balancer unit.

Does it qualify for free shipping?

Yes. At $239.95 and 0.8kg it clears the $150 threshold and sits well under the 3kg cap, so it ships free to VIC, NSW, QLD, SA and ACT. WA, NT, Tasmania and remote areas are quoted separately. Most orders to those five states arrive within 2 to 5 business days.