MQ-131
Key Features
- Environment condition Remarks C
- The enveloped MQ-131 have 6 pin ,4 of them are used to fetch signals, and other 2 are used for providing heating current
- Electric parameter measurement circuit is shown as above Fig.1
- Sensitivity characteristic curve Fig.3 is shows the typical sensitivity characteristics of the MQ-131 for several gases
- in their: Temp: 20 Humidity: 65% O2 concentration 21% RL=20kΩ Ro: sensor resistance in the clean air
- Rs: sensor resistance at various concentrations of gases
- Fig.3 sensitivity characteristics of the MQ-131
