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Methane CNG Gas Sensor MQ4

156.00 149.00

MQ4 is a low cost semiconductor sensor which can detect the presence of methane natural gases at concentrations from 200 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 methane gas increases. It has also sensitivity to propane and butane gases. MQ4 Methane CNG 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

MQ4 is a low cost semiconductor sensor which can detect the presence of methane natural gases at concentrations from 200 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 methane gas increases. It has also sensitivity to propane and butane gases. MQ4 Methane CNG gas sensor can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc using an Analog to Digital Converter (ADC)

Features

  • High Sensitivity to Methane, Natural Gas
  • Fast Response
  • Stable and Long Life
  • Low Cost
  • Simple drive circuit

Technical Data

  • Detecting Concentration : 200 ~ 10,000 ppm
  • Circuit Voltage : 5V ±0.1 AC or DC
  • Heating Voltage : 5V ±0.1 AC or DC
  • Load Resistance : 20KΩ
  • Heater Resistance : 33Ω ±5%
  • Heating Consumption : < 750mW
  • Operating Temperature : -10°C ~ 50°C

Connection Diagram

MQ4 Methane CNG Gas Sensor Connections

MQ4 Methane CNG Gas Sensor Connections

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