Dispositif de retenue pour la fixation d'un objet, en particulier un détecteur d'incendie, sur un sous-sol

摘要

The holding device (1) comprises a receiving part (6) and an engaging portion (7), where the receiving part comprises a receiver (8) that is formed in a rotationally symmetric manner. The receiving part is connected with the engaging portion by a magnetic connection (9). The engaging portion is inserted in different rotational positions in the receiver.