Product Introduction
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Air Quality Sensor MP501 Product Description
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The MP501 gas sensor is an air quality gas sensor. It uses a multi-layer thick film manufacturing process, with a heater and a metal oxide semiconductor gas-sensitive layer formed on both sides of a miniature Al2O3 ceramic substrate, connected by electrode leads, and packaged in a TO-5 metal housing. When the target gas is present in the ambient air, the sensor's conductivity changes; the higher the concentration of the gas, the higher the sensor's conductivity. A simple circuit can convert this change in conductivity into an output signal corresponding to the gas concentration.
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Air Quality Sensor MP501Sensor Features
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High sensitivity to alcohol and smoke;
Fast response and recovery;
Miniature, low power consumption;
Simple detection circuit;
Good stability and long lifespan.
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Air Quality Sensor MP501Main applications
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Used for detecting harmful gases in home environments and offices, automatic exhaust devices, air purifiers, etc.
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Air Quality Sensor MP501Technical Specifications
| Product Model |
MP501 |
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| Product Type |
Planar semiconductor gas-sensitive element |
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| Standard Package |
TO-5 |
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| Detection gas |
Alcohol, smoke |
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| Detection Concentration |
10-1000ppm(Alcohol) |
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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-sensitive element characteristics under standard test conditions |
Heating Resistance |
RH |
85Ω±10Ω(room temperature) |
| Heating Power Consumption |
PH |
≤300mW |
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| Sensitive body Electricity Resistance |
Rs |
1KΩ-30KΩ(in 50ppm Alcohol) |
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| Sensitivity |
S |
Rs(in air)/Rs(50ppmAlcohol)≥5 |
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| Concentration Slope |
α |
≤0.6(R50ppm/R30ppmAlcohol) |
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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 |
Not less than48Hours |
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