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Keyestudio EASY Plug MQ-135 Air Quality Sensor Gas Detection Module for Arduino STEAM

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MQ135 sensor uses SnO2 sensitive material because SnO2 has low electrical conductivity in the clean air. 
When surrounded by polluted air, the electrical conductivity of MQ135 sensor will increase with the increase of pollutants, and the change in electrical conductivity can be converted to corresponding output signal.
You can rotate the potentiometer on the sensor to adjust the sensitivity. MQ135 has a high sensitivity to ammonia, sulfide, benzene vapor, smoke and other harmful gases.
This module should be used together with EASY plug control board.

  • Interface: Easy plug

  • Sensor type: Semiconductor

  • Operating voltage: 5V DC

  • Load resistance: Adjustable RL

  • Quick response and high sensitivity

  • Target gas: ammonia; methylbenzene; hydrogen

  • Dimensions: 56mm*20mm*18mm

  • Weight: 9.2g

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