Buy a high sensitivity gas sensor to detect flammable gases and smoke from 300ppm to 10000ppm. It can also detect natural gas and other flammable vapors, suitable for different applications in detecting various flammable gases.
Specifications
Model |
ATO-MQ-2 |
Product Type |
Semiconductor Gas Sensor |
Standard Package |
Bakelite, Metal Cap |
Detect Gas |
Flammable gas, Smoke |
Detection Concentration |
300~10000ppm C3H8 |
Standard Circuit Conditions |
Loop Voltage |
VC |
≤24V DC |
Heating Voltage |
VH |
5.0V±0.1V AC or DC |
Load Resistance |
RL |
Adjustable |
Gas Sensor Characteristics Under Standard Test Conditions |
Heating Resistor |
RH |
29±3Ω (Room Temperature) |
Heating Power Consumption |
PH |
≤950mW |
Sensitivity |
S |
RS(in air)/RS (in 2000ppm C3H8)≥5 |
The Output Voltage |
VS |
2.5V~4.0V (in 2000ppm C3H8) |
Concentration Slope |
α |
≤0.6 (R3000ppm/R1000ppm C3H8) |
Standard Test Conditions |
Temperature and Humidity |
20℃±2℃, 55%±5%RH |
Standard Test Circuit |
VC: 5.0V±0.1V, VH: 5.0V±0.1V |
Preheat Time |
Not Less Than 48h |
Oxygen Concentration |
21% (Not less than 18%. Oxygen concentration will affect the initial value, sensitivity and repeatability of the sensor. Please consult when using it under low oxygen concentration.) |
Life |
10 Years |
Structural Diagram
Circuit Diagram
Tips: What is a combustible gas sensor?
A combustible gas sensor is a device designed to detect the presence of flammable or combustible gases in the air. These sensors play a crucial role in ensuring safety in various environments where the risk of gas leaks or buildup exists, such as industrial facilities, laboratories, homes, and commercial spaces. The primary function of a combustible gas sensor is to monitor the concentration of gases that can ignite and pose a fire hazard.
These sensors typically employ various technologies to detect the presence of combustible gases, including catalytic bead, infrared, and semiconductor-based sensors. Catalytic bead sensors rely on the combustion of gases on a heated surface, leading to a change in temperature that is then measured. Infrared sensors detect specific wavelengths of light emitted by gases during their absorption or emission processes. Semiconductor sensors utilize changes in electrical conductivity when exposed to combustible gases.
Once a combustible gas sensor detects a hazardous concentration, it triggers an alarm or activates safety measures to mitigate potential risks. Timely detection of combustible gases is crucial for preventing explosions, fires, and other dangerous situations. Combustible gas sensors are integral components of gas detection systems, contributing to the overall safety of individuals and the protection of property and the environment.