Alarm system and remote monitor panel

Communications: electrical – Audible indication – Pneumatic-type sound producer

Patent

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Details

3402131, G08B 2500

Patent

active

040259188

ABSTRACT:
An alarm system remote monitor panel having a series of control units, each unit being provided with a light cell, diodes and a coil so that when a remote sensor triggers an alarm, the light will be illuminated and the audio unit activated. The audio may be disconnected at the monitor panel, and the light turned off at the sensor.

REFERENCES:
patent: 2840804 (1958-06-01), Rodgers
patent: 2917731 (1959-12-01), Rodgers
patent: 2934752 (1960-04-01), Arrasmith

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