Trafo-Controller is a 5-speed fan controller with a remote temperature probe, for placement anywhere in the greenhouse. It has a copper coil inside that cancels out noise and humming from fan speed changes.

Features:

-5-step ventilation control, always cancelling out noise and vibration.

-Completely silent.

-1 connection port on the side of the unit.

-Especially suitable for alternating current motors.

-Very easy to configure, just set the desired temperature.

-Includes an external temperature sensor.

-Available in 1.5 and 2.5 amps.