Conventional Photoelectric Smoke Detector Alarm 433MHz Passed
Photoelectric technology is generally more sensitive than
ionization technology at detecting large particles, which tend to be produced
in greater a mounts by smoldering fires , which may smolder for hours
before bursting into flame . Sources of these fires may include cigarettes
The unit monitors the air, and when smoke re aches its sensing
chamber, it alarms. It can give you more time to escape before fire spreads.
This unit can only give an early warning of developing fires if it is
installed, maintained and located where smoke can reach it, and where al l
residents can hear it, as described in this manual.
This unit will not sense gas, heat, or flame. It cannot prevent or extinguish fires The alarm shall include a test button that will electronically
simulate the presence of smoke and cause the unit to go in t o alarm.
This sequence tests the units electronics, battery and horn to ensure proper
operation. The unit shall include a piezoelectric horn that is rated at 85
decibels at 10 feet. In a smoke incident, the horn will sound in the repetitive manner—three beeps, a pause, three beeps , a pause.
The unit shall also include a low battery warning utilizing a brief
alarm chirp every30 -4 0 seconds for a minimum of seven days .The alarm will utilize a red LED that shall flash once every 30 -40
seconds to indicate the alarm is receiving power.
It's applies widely to works, banks, stores, warehouses, offices
and homestead etc.
Static Current ::
≤1 2 µ A
≤1 5 m A
Audio Al arm:
8 5 DB a t 1 0 f e et
6m high , 6 0 ㎡
Humidity R a n g e:
≤9 5 % R H (4 0 ±2 ℃)
1 4℉( - 1 0 ℃) t o 1 4 7 ℉( 60 ℃)
B a t t e r y : 9 V b a t t e r y b a c k - u p f o r a t l e a s t
1 y e a r .