The latest addition to GAS’ range of controllers, the new AC 1 is the easy and effective way to control AC fans.

The GAS EC1 thermostatic speed controller is the perfect way to control your outtake EC fans.
With a minimum and maximum speed control and powered from the fan, there is no need for a power pack.

The EL F controllers are new to the family. Not only do they offer everything the Gen 2 controller has to offer in control and safety, but they also provide integrated, intelligent fan control, based on a PID algorithm.

The SMS Twin Fan Controller helps to regulate the speed and temperature of your intake and extraction fans within your grow room to provide the perfect indoor climate.

The Control Freak Dynamic Frequency Fan Controller gives you absolute control over your fan speed. Most AC fan controllers will clip or distort your wave form, however this one will change the frequency completely. Energy costs are cut, the life of your fans is extended, and you get super smooth control with no buzzing sounds.

Available: 7A | 13A

The GAS Step Controllers are the best AC fan controllers available. Quiet, simple to use and the most efficient way to regulate your AC fans, with no clicking between steps like other AC fan controllers.
The digital controller technology with solid state relays create a top quality 5 step transformer. Made in Europe to the highest quality standards, the silent seamless changes between steps removes the loud clicking that some controllers have.

The 4 AMP Pro Plus Controller has the same top quality transformer and silent step transitions as the pro version. It has the addition of a heater control that works in unison with the fan controller. Keeps your grow room close to your set temperature all the time.

The GAS Step Controllers are the best AC fan controllers available. Quiet, simple to use and the most efficient way to regulate your AC fans, with no clicking between steps like other AC fan controllers.
The digital controller technology with solid state relays create a top quality 5 step transformer. Made in Europe to the highest quality standards, the silent seamless changes between steps removes the loud clicking that some controllers have.

G.A.S newest controller, the EC5 Fan Controller plugs directly into any of the Systemair EC fan range. The EC5 fan controller is a thermostatic controller with RTT technology - meaning it intelligently reacts to changes in your grow room temperature and will increase or decrease the speeds of your fans accordingly.