Short Description:

This smoke detector adopts photoelectric detector.Photoelectric techology is more sensitive than ionization technology at detecting large particles.Fire is dangerous. We need to install at least one in our bedroom.Stairway is very important for people to rush out when fire occurs.So there must install smoke detectors.Install the smoke detector in the middle of ceiling,because smog and heat always lift up to the top of room.

*Power supply: 9V DC battery

*Static current:20uA                            

*Alarm current:10mA                         

*Alarm sonority:>85dB                    

*Working temperature:-10℃–+40℃

*Working humidity<95%RH   

*Photoelectric Sensor,LED indicator

*Test: After installation we must notice whether the led flash once about 40sec or not, if do, that shows normal.

Press and hold the test button on the cover,the smoke detector should sound.The alarm sound should be loud and pulsating.And while it alarms,the led will flash once a second.That indicates the smoke alarm is operating correctly. If the alarm makes low chirp sound every some time,it tells us to replace battery.Sometimes when you smoke, the unit will alarm, so you can just blow air to it to stop alarming.