Pipe fan of Prima Klima Air Controller with built. The fan is mounted with a cable temperature sensor, which controls the fan by using Minimumdrehzahl- and desired temperature. The idea of the fan controller is a space must be kept at a constant temperature without the set minimum speed of the fan is below to prevent the odors can escape. It is easy to use , the required temperature and the minimum speed of the fan is adjustable via two knobs. The minimum speed controller is supplied as a unit and is ready for use. This reliable fan controller comes complete with a splash -proof casing , plugs with flap -lids and a low voltage sensor, which makes it the perfect for humid rooms.