A device (1) for connecting an electric power source (8) with an electric appliance (9) comprising a first electric coil (4), connecting the electric power source (8) with the device (1) and a second electric coil (5), connecting the electric appliance (9) with the device (1), at least one sensor (6) arranged outside the device (1) for identifying a speed of air, an alarm device connected to the at least one sensor (6) configured such that depending on the speed of air generates a pre-alarm signal and/or a main alarm signal and/or cuts an electric connection between the electric power source (8) and the electric appliance (9), and an electric circuit having an input element (7) configured such that by operating the input element (7) after the end of a preset period of time, the electric connection between the electric power source (8) and the electric appliance (9) is activated, if the at least one sensor (6) does not identify a preset speed of air.