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) |
Further Info
The MQ-4 module can detect Methane, CNG Gas. The MQ3 alcohol sensor operates at 5V DC and consumes about 750mW. It can detect methane, Natural gas concentrations anywhere from 300 to 10000 ppm. A crust made of plastic and stainless steel net holds the sensor, which is made up of a micro AL2O3 ceramic tube, a Tin Dioxide (SnO2) sensitive layer, a measuring electrode, and a heater. Read more