BL-NTC-WD-568
ProfileSensitive material of MQ131 gas sensor is a semiconductor metal oxide with high conductivity in clean air. When the ozone gas exists, the sensor’s conductivity gets lower along with the gas con
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Profile
Sensitive material of MQ131 gas sensor is a semiconductor metal oxide with high conductivity in clean air. When the ozone gas exists, the sensor’s conductivity gets lower along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit. MQ131 ozone gas sensor has high sensitivity to ozone, and also has sensitivity to strong oxide gases, such as Cl2, NO2 etc. It responses oppositely to organic interference gases, compared with O3.
Features
It has good sensitivity to ozone in wide range, and has advantages such as long lifespan, low cost and simple drive circuit &etc.
Applications
It is widely used in domestic ozone concentration alarm, industrial ozone concentration alarm and portable ozone concentration detector.
| Temperature sensor parameter | Nominal resistance value | B value | rated power | Dispersion coefficient | Hot time constant | Operating temperature |
| R25（Ω） | 25/50℃ | （mw） | （mW℃） | （S） | （℃） | |
| 5K3470 5K3950 10K3435 10K3950 15K3950 20K3950 50K3950 100k3950 【Other customable】 | 5K 10K 15K 20K 30K 50K 100K 200K 【Other customable】 | 3435 3470 3800 3950 4100 4200 【Other customable】 | ≤50 | ≥2.0 Static air | ≤15 Static air | -50～+300℃ |
