MQ7 Gas Sensor/Detector Module- Arduino Compatible carbon monoxide(CO) Sensor


10 in stock

The MQ7 gas sensor module is highly useful for carbon monoxide(CO) gas detection at home, car or industry. The sensor module can detect carbon monoxide(CO). It is highly sensitive and responding time is very fast. Depending on the requirements of sensitivity, the sensor can be adjusted with a Potentiometer.


10 in stock

MQ7 is a higly sensitive analogue output sensor which is commonly used as carbon monoxide(CO) gas sensor in MQ sensor series. It is a very popular Gas Sensor in verious sectors. The output voltage of the gas sensor increases if the concentration of gas increases. The sensitivity of the sensor is adjustable by the Potentiometer. The MQ7 who is arduino compatible.

The working voltage of MQ7 gas sensor is 5 volt DC and it draws around 350mW. This sensor is capable of detecting carbon monoxide(CO) gas concentrations anywhere from 20ppm – 2000ppm.


  • They are used in gas detecting equipment for carbon monoxide(CO) in family and industry or car
  • Suitable for detecting of carbon monoxide(CO)


  • High sensitivity to carbon monoxide(CO)
  • Fast response
  • Stable and long life
  • Simple drive circuit
SKU: 260006 Category:

Technical Specifications

Weight 30 g
Dimensions 25 × 33 × 25 mm
Main Chip


Operating Voltage


Load resistance


Heater resistance

33Ω ± 5%

Heating consumption

<350 mW

Sensing Resistance

5 KΩ – 47 KΩ

Concentration Scope

10 – 10000 ppm

Preheat Time

Over 48 hours

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