10 Year Smoke Alarm with Lithium Battery
Technical Parameter:
3V CR123A battery operated
Flash alarm indicator (red)
85 db alarm singal within 3 meters
Solid connections and battery included
Low battery signal
Test button
Size: (diameter) 101×34mm
The smoke alarm works on the principle that infrared scatters in the smoke to probe the smoke which is generated by the incomplete combustion at the initial stage of the fire. It consists of photoelectric system, signal processing identification circuit and alarm circuit. The infrared scatters on the surface of the smoke when the smoke enters the darkroom of the detector, then the photoelectric diode receives the scattered light and generates the photoelectric signal current. The photoelectric signal generates the alarm signal after being processed by the identification circuit, accordingly the purpose of alarming is achieved.
