Description
This MQ4 - Methane Gas sensor module can sense the presence of compressed Natural Gas sensors (CNG), methane(CH4) etc. in the air. This is a very easy to use low-cost semiconductor Gas sensor Module with analog and digital output. It requires no external components just plug in Vcc & ground pins and you are ready to go. It is small sensitive to alcohol and smoke.
Specifications
| Module | MQ-4 |
| Output Type | Both Analog and Digital |
| IC Chip | LM393 |
| Operating Voltage | 3V-5V DC |
| Detecting Range | 300ppm to 10000ppm |
| Length x Width x Height | 31 x 19 x 21 (mm) |