MK2 Smart Fan Controller 6.5amp single fan environment control The SMSCOM Smart Controller for single grow room fan, distinguishes itself from other types of controllers by using software. This technology has only ever been seen in the Twin Controller 4.5amp but is now available in a unit designed to control a single fan. The Smart Controller will automatically find the correct running speed of your fan so a constant temperature is maintained. This new technology ensures more accurate temperature control, less fan noise and longer life of your fan. The Smart Controller is plug and play so no wiring is needed, just plug in your fan, set the desired temperature and the software inside the Smart Controller will calculate the correct running speed of your fan to accurately maintain your temperature.