Gas Alarm

The smoke detector works on the principle that infrared scatters in the smoke to
probe the smoke which is generated by the incomplete combustion at the initial stage
of the fire. It consists of photoelectric system, signal processing identification
circuit and alarm circuit. The infrared scatters on the surface of the smoke
when the smoke enters the darkroom of the detector, then the photoelectric
diode receives the scattered light and generates the photoelectric signal current.
The photoelectric signal generates the alarm signal after being processed by
The household gas alarm is developed by adopting advanced electronic techniques and
gas detecting techniques. It is of high sensibility and is applicable to detecting
the leakage of household gas, liquid gas and natural gas. The sensor reacts
with the diffused gases in the air directly and generates linear voltage signal.
When the detected gas density reaches a setting value, the alarm will send out
acousto-optic alarm signal to remind users to take measures in time.