An electronic motion detection device (1) comprises a support structure (2) adapted to be fixed to a wall and a spherical body (3), which is rotatably supported by the support structure (2) and adapted to be locked in a plurality of spatial orientations. A detection member (4) comprises a sensitive element such as a radar antenna and an interface (44) configured to exchange configuration data. Such member is adapted to be inserted into a seat (31) of the spherical body (3) in a direction of insertion (X-X), and may be locked to the seat (31) of the spherical body (3) in an operating position ad in a configuration position. In the operating position, the spherical body (3) and the detection device (4) are arranged in such a manner as to prevent a user to access the interface (44) whereas, in the configuration position, the detection member (4) is translationally shifted in the direction of insertion (X-X) with respect to the operating position to be operated, for the user to be able to access the interface (44).