Cat No: SGS-LJX-0002 Datasheet
Product Name: Combustible Gas Sensor, 300–10000 ppm (combustible gas)
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| Detailed Description | The gas sensor uses tin dioxide (SnO2), a gas-sensitive material with low conductivity in clean air. When combustible gases are present in the sensor's environment, the sensor's conductivity increases with the concentration of the combustible gas in the air. A simple circuit can convert this change in conductivity into an output signal corresponding to the gas concentration. The MQ-2B gas sensor is highly sensitive to propane and smoke, and is also ideal for detecting natural gas and other combustible vapors. This sensor can detect a variety of combustible gases and is a low-cost sensor suitable for a wide range of applications. |
| Main Applications | Widely applicable to household gas leak alarms, industrial combustible gas alarms, and portable gas detection instruments. |
| Product Type | Semiconductor gas-sensitive element |
| Standard Package | Plastic sealing |
| Detecting Gas | Combustible gas and smoke |
| Detection Concentration | 300–10000 ppm (combustible gas) |
| Circuit Voltage | 5.0V±0.1V DC |
| Heating Voltage | 5.0V±0.1V AC or DC |
| Load Resistor | Adjustable |
| Heating Resistor | 30Ω±3Ω (room temperature) |
| Heating Power Consumption | ≤950mW |
| Sensitivity | Rs(in air)/Rs(2000ppm C3H8)≥5 |
| Output Voltage | 2.5V～4.0V（in 2000ppm C3H8） |
| Concentration Slope | ≤0.6(R3000ppm/R1000ppm C3H8) |
| Standard Test Temperature and Humidity | 20℃±2℃;55%±5%RH |
| Standard Test Circuit | Vc:5.0V±0.1V; VH:5.0V±0.1V |
| Standard Test Preheating Time | No less than 48 hours |
| Oxygen Content | 21% (not less than 18%, (Oxygen concentration will affect the sensor's initial value, sensitivity and repeatability. Please consult when using it in low oxygen concentration conditions ) |
| Life | 10 years |
| Features | It exhibits good sensitivity to propane, fumes, and other pollutants over a wide concentration range. Long lifespan, low cost Simple drive circuit |
| Note | Output voltage (Vs) refers to the voltage in the test atmosphere. |
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For industrial/research use only. Not for personal/medical use.
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Eata Sensors is your strategic partner in precision sensing technology. We offer a full range of advanced sensor products, core components, and customized engineering services. We collaborate with global clients to jointly solve complex measurement challenges.
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