During operation of cooker hoods or extraction fans, smoke or exhaust from open chimneys, ovens and gas heaters can be drawn back into the room. This can lead to potentially fatal poisoning caused by the odourless and invisible gases carbon monoxide and carbon dioxide. For this reason, according to the furnace regulations M-FeuVO§4, simultaneous operation of a fireplace and an air-suction plant is only permitted if there is provision of an adequate supply of fresh air, e.g. from an open window. And our air extraction radio controller takes over this monitoring function for you. Because the socket control device will only enable the voltage for the connected fume hood if the window is open. The switch state of the window sensor is transmitted to the control unit by radio. Should your window or door be further away from the ventilation unit, or if you don't want to lay cables in your flat, then our extractor radio control is ideal for you. Further you cannot only select the described fun