Fan Speed Controls

The Modulating Temperature Control allows you to automatically control the speed of fans with variable speed motors according to the ambient temperature. When the temperature is at the set point, fans operate at the idle speed setting.When the temperature exceeds the set point, it increases the fan speed.When the temperature increases 6°F above the set point, the fan speed will be at the maximum.When the temperature drops below the set point, the MTC-4C shuts off the fans (in shut-off mode),...

This variable control lets you manually adjust the fan speed for fans in your greenhouse from 30% to 100% of output capacity (Minimum output depends on fan). It also has the ability to turn a fan on and off. Controller comes in a weather proof electrical enclosure suited for greenhouse environments. Great option for equipment requiring a controller that can handle higher amperages like the ACF 24" variable speed exhaust fan. Operates on 110/120 voltage up to 10 amps. Wiring required. Speed...

This variable control lets you manually adjust the fan speed for exhaust and circulation fans in your greenhouse from 30% to 100% of output capacity (Minimum output depends on fan). It also has the ability to turn a fan on and off. Controller comes in weather proof electrical enclosures with watertight cover. This controller is very helpful in the winter when less ventilation is necessary and too much cold air flow at once from outside can cause temperature shock to nearby plants. Only use...

This variable control lets you manually adjust the fan speed for exhaust and circulation fans in your greenhouse from 30% to 100% of output capacity (Minimum output depends on fan). It also has the ability to turn a fan on and off. Controller comes in weather proof electrical enclosures with watertight cover. This controller is very helpful in the winter when less ventilation is necessary and too much cold air flow at once from outside can cause temperature shock to nearby plants. Only use...