Air Quality Sensor MQ135

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Air Quality Sensor MQ135

MQ135 is a low cost semiconductor sensor which can detect the presence of Ammonia (NH3), Mono-nitrogen oxides (NOx), Alcohol, Benzene, Smoke, Carbon-dioxide (CO2) etc. This module is commonly used as an Air Quality Sensor as it has good sensitivity to harmful gases in wide range. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air. It’s conductivity increases as the concentration of sensing gases increases. MQ135 Air Quality Sensor can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc using an Analog to Digital Converter (ADC).

350.00 289.00

10 in stock

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Description

MQ135 is a low cost semiconductor sensor which can detect the presence of Ammonia (NH3), Mono-nitrogen oxides (NOx), Alcohol, Benzene, Smoke, Carbon-dioxide (CO2) etc. This module is commonly used as an Air Quality Sensor as it has good sensitivity to harmful gases in wide range. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air. It’s conductivity increases as the concentration of sensing gases increases. MQ135 Air Quality Sensor can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc using an Analog to Digital Converter (ADC).

Features

  • Low Cost
  • Stable and Long Life
  • Good sensitivity to harmful gases in wide range
  • High sensitivity to Ammonia, Sulfide and Benzene
  • Simple drive circuit

Technical Data

  • Circuit Voltage : 5V ±0.1 AC or DC
  • Heater Voltage : 5V ±0.1 AC or DC
  • Load Resistance : Adjustable
  • Heater Resistance : 33Ω ±5% at Room Temperature
  • Heating Consumption : < 800mW
  • Operating Temperature : -10°C ~ 45°C
  • Detection Concentration : 10 ~ 300 ppm of NH3, 10 ~ 1000 ppm of Benzene, 10 ~ 300 ppm of Alcohol

Connections

MQ135 Air Quality Sensor Connections

MQ135 Air Quality Sensor Connections

Applications

  • Domestic air pollution detector
  • Industrial air pollution detector
  • Portable air pollution detector
  • Air quality control equipments

Datasheet

Additional information

Weight 5 g
Dimensions 23 x 19 x 19 mm