Complete with 4 metre wired thermo probe for accurate temperature readings.

Operating the fan speed controller and thermostat:

• Set your desired grow room temperature on the thermostat (e.g. 20 degrees celsius)
• Set the desired speed you wish the fan to run (e.g. medium speed)

• When your grow room temperature drops below the set temperature on the thermostat (20 degrees celsius), the fan will operate at the selected speed (medium). When the temperature rises above the selected temperature, the fan will increase its speed to maximum until the temperature drops again to the desired level.

  This means that when the area cools down, the fan will then also slow down reducing overcooling.