Danger warning system, esp. for multi-family home - has encapsulated electric lead which activates alarm switch when encapsulation is broken

摘要

The warning system has switches (2,3 or 9) which close a circuit in the signalling line to signal (6) danger. An electric lead (2) is provided in an air-tight encapsulation. When the encapsulation (1) is broken, a switch is activated to indicate danger. Signallers (12) and panic switches (9) are placed in the rooms of the house such that they cannot all be reached by an intruder simultaneously. A module (11) in the panic switch circuit changes the ringing tone of the door bell (12). Gas sensors, fire sensors, and glass break detectors can also be included in the warning system. A time relay (10) is activated when the panic switch is misused. The capsule contg. the electric lead can be made of glass, ceramic, or other amorphous material. ADVANTAGE - Difficult to deactivate by intruder.