BR-823 Home security Fire control alarm wire heat smoke sensor

This product named photoelectric smoke(here in after called detector)detects the smoke by a couple of infrared diodes,The principle of detecting is granule in the smoke can reflect infrared light.infrared diodes are placed in the special chamber.the chamber can shield external light,but does not affect the smoke into it.while there is no smoke,the diode can receive very weak infrared light.when the smoke entering the chamber,diode can receive more and more light,and thedetector can give out alarm signal when the  heat smoke attains the certain density,in order to reduce the interference and lower power consumption,the emitting circuit adopts the pulse signal.the product in accordance with the networking approach is divided into 4 wired

Feature:

1.strong adaptability for circumstance

2.SMT design,high stability

3.9-35VDC wide voltage operating range

4.low standby current

5.power supply non-polarized input

6.flashing led power indicator

7.metal shield,anti-electromagnetic inerference