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MQ3 Gas Sensor
  • MQ3 Gas Sensor
  • MQ3 Gas Sensor
  • MQ3 Gas Sensor

MQ3 Gas Sensor

The MQ3 gas sensor is a device designed to detect the concentration of alcohol, as well as other flammable gases such as LPG (liquefied petroleum gas), methane and hydrogen. Using a tin dioxide (SnO₂) sensing element, this sensor offers high sensitivity and fast response time, making it ideal for security and air quality monitoring applications. Available in Cameroon / Africa on Easy Components.

FCFA1,998
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Description

Main Features

  • Detected Gas Type: Alcohol, LPG, Methane, Hydrogen
  • Detection Range: 200 to 10,000 ppm for alcohol
  • Supply Voltage: 5V
  • Output: Analog (0V to 5V) and Digital (TTL signal)
  • Warm-up Time: About 20 seconds
  • Adjustable Sensitivity: Adjusted via potentiometer

Applications

  • Alcohol detection in access control systems
  • Gas leak monitoring in kitchens and laboratories
  • Robotics and automation projects
  • Home security alarm systems

The MQ3 sensor is a popular choice for DIY projects and embedded systems due to its ease of use and reliability.

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