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Flammable Gas and Smoke Sensor

155.00 129.00

MQ2 is a low cost semiconductor sensor which can detect smoke and flammable gases at concentrations from 300 to 10,000 ppm. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air. It’s conductivity increases as the concentration of combustible gases increases. This sensor has high sensitivity to Hydrogen, Propane, LPG, Methane and other combustible steams. This can be used to detect gas leakage in industries and houses. MQ2 gas sensor can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc using an Analog to Digital Converter (ADC).

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Product Description

MQ2 is a low cost semiconductor sensor which can detect smoke and flammable gases at concentrations from 300 to 10,000 ppm. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air. It’s conductivity increases as the concentration of combustible gases increases. This sensor has high sensitivity to Hydrogen, Propane, LPG, Methane and other combustible steams. This can be used to detect gas leakage in industries and houses. MQ2 gas sensor can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc using an Analog to Digital Converter (ADC). You may also use a comparator to convert analog output to digital and a preset can be used along with it to adjust sensitivity.

Features

  • Wide detecting scope
  • Stable and long life
  • High sensitivity
  • Fast response
  • Low cost
  • Long Life
  • Simple drive circuit

Technical Data

  • Sensor Type : Semiconductor
  • Standard Encapsulation : Black Bakelite
  • Detection Gas : Combustible Gas and Smoke
  • Concentration : 300 – 10000ppm
  • Circuit Voltage : 5V ±0.1 AC or DC
  • Heating Voltage : 5V ±0.1 AC or DC
  • Load Resistance : can adjust depending on sensitivity
  • Heater Resistance : 33Ω ±5% at room temperature
  • Heating Consumption : < 800mW

Connection Diagram

MQ2 Smoke and Flammable Gas Sensor Connections and Dimensions

MQ2 Smoke and Flammable Gas Sensor Connections and Dimensions

Applications

  • Domestic gas leakage detector
  • Industrial combustible gas detector
  • Portable gas detector

Datasheet

Additional Information

Weight 5 g
Dimensions 23 x 19 x 19 mm

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