The present application relates to a freezing precipitation detection device (10) comprising at least one first wetness detection means (1) in thermo-conducting contact with the upper (3A) surface of a sloped thermo-conducting sheet (3), at least one second wetness detection means (2) in thermo-conducting contact with the lower (3B) surface of said sloped thermo-conducting sheet (3), at least one surface temperature detection means (4) in thermo-conducting contact with said sloped thermo-conducting sheet (3), at least one processor (5) configured to receive at least one first signal (11;11A,11B,11C) from the first wetness detection means (1) and from the second wetness detection means (2) and from the surface temperature detection means (4), analyzing said first signal (11;11A,11B,11C) and determining the presence or the absence of a freezing precipitation on the surface of the sloped thermo-conducting sheet (3), at least one first apparatus (7) for external power relay receiving at least a second signal (12) from the processor (5), said signal being indicative of a recommended action by said first apparatus (7), said action being either permitting to provide power or not to provide power to at least one third apparatus (8), at least one second apparatus (6) for power supply being connected to said processor (5) and also to said first apparatus (7), wherein said second apparatus (6) for power supply is not actively heating said thermo-conducting sheet (3), said first apparatus (7) permitting to provide power to said third apparatus (8) only when said surface temperature detection means (4) detects a temperature less or equal to a determined threshold and the first and second wetness detection means (1;2) detect the presence of a freezing precipitation. The present invention relates also to uses and a method for detecting a freezing precipitation.