This UK made fan controller is excellent value for money and will control all fan sizes. Features remote thermostat and temperature setting as well as twin fan speed controllers. The Primair Controller works simply by wiring both your inline and exhaust fans into the unit and setting the desired temperature. Once the fans are wired in you can then set the speed control mechanisms to give you even more control over your environment & fine tune the climate controller to your own specifications.
Using Primair Controller will help maintain a healthy growing environment by ensuring an adequate exchange of air in the grow room as well as maintaining a suitable ambient temperature conducive to rapid & healthy plant growth.