How a gas alarm works in daily life

The gas alarm we use in our daily life is also called gas alarm. It refers to the equipment that will send out sound and light alarm when the gas leakage reaches the set concentration, and it can also automatically open the exhaust fan and close the electromagnetic valve and other linkage measures. The core part of the sensor is sensor, and the classification of the sensor mainly includes semiconductor, catalytic combustion and electrochemical formula. Its working principle is to generate chemical reaction or electrochemical reaction on the surface of the sensor by adsorbing the gas in the surrounding environment, causing changes in the electrophysical characteristics of the sensor and thus achieving alarm.

The performance characteristics of


High quality gas sensor, stable and reliable, good consistency


Microprocessor intelligent algorithm automatically compensates for gas sensor drift


The catalytic combustion gas sensor works stably and has a long life, avoiding false alarm


Test button - test the circuit of alarm and alarm output


LED lamp - displays alarm working normally and alarm status


The shell is made of fireproof ABS engineering plastic, beautiful and generous


The catalytic combustion gas sensor is adopted for stable operation and sensitive response.


Small size, simple installation, easy to use;


Microprocessor (MCU) makes intelligent judgment and stable performance.


Product parameters


Working voltage: AC220V or dc12-28v


Power consumption: the normal monitoring is less than 1.5w, and the alarm is less than 3W.


Alarm sound: greater than 80dB.


Alarm concentration setting: 8%LEL (4000ppm).


Sensor life: 3-5 years


Using the environment temperature: - 10 ℃ to + 50 ℃, relative humidity of 90% or less, don´t gel


Dimensions: 120mm * 72mm * 42mm


Shell material and color: ABS ivory white