stand alone smoke detector 9V Battery Operated Smoke Detector

Main Functions:
Standalone surface mounted, easy operate
Stable performance, high sensitivity
Apply optical smoke test room
With buzzer, alarm independently
Simulate alarm test
Low voltage alarm when it less than 6.8V

Features:
Works on principle that infrared scatters on smoke surface
Probes smoke which is generated by incomplete combustion at initial stage of fire
Smoke detector consists of photoelectric system, signal processing identification and alarm circuit
Infrared scatters on surface of smoke when smoke enters darkroom of detector
Photoelectric diode receives scattered light and generates photoelectric signal current
Photoelectric signal generates alarm signal after being processed by identification circuit, accordingly purpose of alarming is achieved

Technical Parameters:
Material: ABS plastic
Power supply: 9V DC Block battery
Quiescent current: 8μA
Alarm current: 16mA
Operating temperature: -20°C ~ +50°C
Humidity: 0 to 95%(40±2°C),no condensing or icing
Alarm decibel: Louder than 85dB at 10feet(3 meters)
Test button: To verify the proper functioning of smoke alarm
Low voltage warning: Smoke alarm beeps every 40 seconds for 30 days (minimum) to indicate a need of battery replacement
Smoke sensitivity: 0.086 dB/m to 0.140 dB/m.

Specification:
Power supply:9V DC Block battery
Material:ABS plastic
Static current:≤10μA
Alarm current:12mA
Humidity:0-95%(40±2°C),no condensing or icing
Quiescent current:8μA
Operating temperature:-10°C ~ +50°C
Alarm decibel:≥85dB at 10feet(3 meters)
Test button: To verify the proper functioning of smoke alarm
Smoke sensitivity: 0.086 dB/m to 0.140 dB/m