Product Introduction
- I.MQ-6 Combustible Gas Sensor Product Description
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The gas sensing material used in the MQ-6 gas sensor is tin dioxide (SnO2) with low conductivity in clean air. When combustible gas is present in the environment, the sensor's conductivity increases with the concentration of the combustible gas in the air. A simple circuit can convert the change in conductivity into an output signal corresponding to the gas concentration.
The MQ-6 gas sensor has high sensitivity to propane, butane, and liquefied petroleum gas, and also has good sensitivity to natural gas. This sensor can detect a variety of combustible gases and is a low-cost sensor suitable for multiple applications.
- II. Features of Combustible Gas Sensor
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Good sensitivity to combustible gases over a wide concentration range
High sensitivity to propane, butane, and liquefied petroleum gas
Long life, low cost
Simple drive circuit required
- III.Main Applications of Combustible Gas Sensor
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Household gas leak alarms
Industrial combustible gas alarms
Portable gas detectors
- IV.Technical Specifications of Combustible Gas Sensor
| Product Model |
MQ-6 |
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| Product Type |
Semiconductor gas sensing element |
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| Standard Package |
Bakelite (black bakelite) |
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| Detection Gas |
Liquefied gas, isobutane, propane, LPG |
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| Detection Concentration |
300-10000ppm (propane, butane, liquefied petroleum gas) |
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| Standard Circuit Conditions |
Loop Voltage |
Vc |
≤24V DC |
| Heating Voltage |
VH |
5.0V±0.2V ACorDC |
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| Load Resistance |
RL |
Adjustable |
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| Gas Sensing Element Characteristics under Standard Test Conditions |
Heating Resistance |
RH |
31Ω±3Ω (room temperature) |
| Heating Power Consumption |
PH |
≤900mW |
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| Surface Resistance of Sensing Body |
Rs |
2KΩ-20KΩ(in 2000ppm C3H8 ) |
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| Sensitivity |
S |
Rs(in air)/Rs(1000ppm isobutane)≥5 |
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| Concentration Slope |
α |
≤0.6(R2000ppm/R1000ppm LPG) |
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| Standard Test Conditions |
Temperature, Humidity |
20℃±2℃；65%±5%RH |
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| Standard Test Circuit |
Vc:5.0V±0.1V； VH: 5.0V±0.1V |
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| Preheating Time |
No less than 48 hours |
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