Product Description                                                                                                                              
1.the cheap smoke alarm Using ASIC control
2.Manual test, auto-reset
3.Low power indication for the cheap smoke alarm
4.Infrared photoelectric sensor
5.Sound & flash alarm
6.Thin structure design
7.Strong adaptability to circumstance
8.The cheap smoke alarm adopted SMT
9.Dustproof, mothproof and anti-white light

Technical specification:                                                                                                                       
Operating voltage:  DC9V (power by battery)                                                  
Standby current:  less than10uA
Alarm current:  less than 20mA
Operating temp:-10 to +50 degrees
Working humidity: less than 95%RH
Alarm mode:  sound & flash alarm
Alarm volume: 85dB/3m
Detecting area:  80 square meter at 6-12m installation height; 60 square meter at installation height <6m 
Sensitivity:  class I 
Dimension:  131mm dia.*45mm deep