Antisabotage peephole for alarm system, has cable connected to one of washers, and projection in charge to intercommunicate peephole with alarm system, where cable is connected to detector for opening of door

摘要

The peephole has a wharf (4) for separating washers (1, 2), which open an electrical circuit. A cable (5) is connected to one of the washers (2). A projection (3) is in charge to intercommunicate the peephole with an alarm system. The cable is connected to a detector for opening of a door.