A signaling device for emitting an acoustic and/or visual signal includes a base housing body and an upper housing part. The upper housing part is connected to the base housing body and forms a receiving space, in which at least one electrical component assembly is disposed. The connection means includes one or more locking pins, which can be disposed in a retaining manner on the upper housing part. The locking pins include a shaft, which can be inserted into a respective assigned opening in the base housing body, and on which at least one catch is disposed. The locking pins can be locked in the base housing body with the catch via a rotation about a partial angle of a full circle.