Battery-Powered Smoke and Fire Alarm, no wire needed. Battery not Included
Environment friendly, without smell, radiation or harm. Battery-Powered,Low power consumption, service life sensor about 10 years.
Photoelectric chamber for early detection from all directions.An indispensable item to protect your family from the Smoke and Fire.
This smoke alarm is designed to be used inside a single family home only.
If you're sure it isn't a really alarm, open windows or fan the air around smoke alarm to test and silence it.
This product is a non-coding type of smoke detectors, which directly access to work through the connection to 9 V DC power supply.
when it is operating normally, red LED indicator light flashes three times slowly and then go into the normal standby state, the red LED indicator light flashes once every 8 seconds and will also always on display during the alarm.
Detector with a pair of output contacts (Open / Close the door is optional). when in case of alarm, contact closed, after the alarm will be turned off; when the space probe drops to the concentration of smoke alarm products the concentration values (default value for each foot of the weaker and 3.2% ashes, the sensors have a response), the machine will automatically restart to Normal working condition .
photoelectric sensor 1. Infrared
2. Police discards the situation restart automatically
3. microprocessor chip to control the professional / filter all kinds of false positives
4. the network output / LED flashing alarm instructions
5. SMT professional placement process, stability
6. dust / pest control / anti-white interference design