The MQ-4 methane gas sensor detects the methane (CNG) natural gas density between 300 ppm and 10000 ppm. It can be used for natural gas leak detection. It gives analog output.
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| Item | MQ4 |
|---|---|
| Input Voltage | 5V |
| Functions | Gas Sensor |
| Working Voltage | 2V to 32V |
| Operating Temperature | -65°C to +150°C |
| Board Dimensions | 20 x 40 mm |
| PIN Number | PIN Name | Description |
|---|---|---|
| 1 | 5V | Power supply |
| 2 | AO | Analog Output |
| 3 | DO | Digital Output |
| 4 | GND | Ground |
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