Panel for triggering an alarm in the event of the cutting of picture canvasses, slashing of seats and perforating of doors, walls, roofs, etc

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>