SMS Hybrid 4 Amp Fan Controller

The SMSCom Plug-in Fan Speed Controller is a quality piece of kit that lets you easily adjust the speed of your intake or outlet duct fan with the turn of the knob. You have the choice of a base unit or the addition of the temperature sensor. Without the temperature sensor, the SMSCom Smart Controller acts as a basic manual fan speed controller giving you 60 different speed settings. With the added temperature probe it can act completely independently, keeping your room to user-set parameters with a fan speed minimum, making it incredibly easy to give your plants the perfect environment.

How the SMSCom Plug-in Smart Fan Speed Controller Works
The SMSCom plug-in Smart fan speed controller is a great little piece of kit that allows you to control the speed of your in-line duct fan. The unit plugs directly into a mains outlet and your extraction fan plugs directly into the socket located on the front of the unit. The control on the front of the unit allows the user to manually adjust the speed of the fan and thereby control the rate of extraction.

A higher rate of extraction during summer months is generally good as it will reduce the temperature and humidity in the grow space. However, during winter months, a fan running at full speed may reduce your grow-space temperature too much. The SMSCom fan speed controller allows you to reduce the fan speed, allowing your grow space to remain at a good temperature while simultaneously reducing fan and duct noise.

The added temperature sensor very simply plugs into the small jack socket on the top of the unit. When this is done, the fan speed control on the fan speed controller sets the minimum constant fan speed while a second control on the controller allows you to set a “maximum” temperature which when reached will increase the fan speed to full until the temperature in the grow-space has dropped back down again.