- Detection range: 300 to 10000 PPMM
- Characteristics of gas: 1000 PPMM isobutane
- Sensitivity: R in air/Rin typical gas =5
- Sensitive resistance: 1k ohm to 20k ohm in 50PPM toluene
Description:
Gas Sensor(MQ2) module is useful for gas leakage detection for home and industry. It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke or Propane. Due to its high sensitivity and fast response time, measurement can be taken as soon as possible. The sensitivity of the sensor can be adjusted bythe potentiometer.
Specification:
- Detection range: 300 to 10000 PPMM
- Characteristics of gas: 1000 PPMM isobutane
- Sensitivity: R in air/Rin typical gas >=5
- Sensitive resistance: 1k ohm to 20k ohm in 50PPM toluene
- Ambient temperature: -20 ~ + 55
- Measure the voltage<=24V
- Power supply needs: 5V
- Interface type: Analog
- Pin Definition: 1-Output, 2-GND, 3-VCC
| Item | Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| VCC | Working Voltage | 4.9 | 5 | 5.1 | V |
| PH | Heating consumption | 0.5 | - | 800 | mW |
| RL | Load resistance | adjustable | |||
| RH | Heater resistance | - | 33 | - | Ω |
| Rs | Sensing Resistance | 3 | - | 30 | kΩ |
Features:
- Wide detecting scope
- Fast response and High sensitivity
- Simple drive circuit
- Stable and long life
Caution:
The sensor value only reflects the approximated trend of gas concentration in a permissible error range, it DOES not represent the exact gas concentration. The detection of certain components in the air usually requires a more precise and costly instrument, which cannot be done with a single gas sensor. If your project is aimed at obtaining the gas concentration at a very precise level, then we don't recommend this gas sensor.
Package Included:
1 x MQ-2 Gas Sensor sense H2, LPG, CH4, CO, Alcohol, Smoke or Propane