Smoke, fire and gas alarm with remote sensing, back-up emergency power, and system self monitoring

摘要: A system for sensing smoke and fire, primarily through the of associated carbon monoixide optionally with supplementary heat sensing, hazardous gases vapors. The senses presence monoxide, even in absence fire is capable hydrogen hydrocarbon vapors such as methane propane. Additionally, volatile paints, varnishes other household industrial substances are detectable. also includes circuitry equipment notification warning detection, together providing emergency operation event normal power failure. Further self-monitoring remote wiring sensor integrity, means integrity checks included. provides use a suitable multitude devices located remotely from main control unit, so that device locations may be chosen to maximize possibility detecting smoke, or previously described. novel form sounding device, type wherein an electro-magnet causes hammer strike apparatus being flammable, combustible otherwise reactive atmospheres.