Panel shutter button alarm in case of a subject matter of cloths of a painter, laceration of the shoulders and perforation of the doors, walls, the roofs...

摘要

Device triggering an alarm in the event of damage to objects, characterised in that it consists of two superimposed metal sheets (1) and (2) separated by an insulant (3), the ends (4) of the sheets (1) and (2) being linked to an alarm (9) via the conductor (5). IMAGE