Gas Sensor MQ-2

MQ-2 Gas Sensor Module for Arduino
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Gas Sensor MQ-2 Specification

  • Fast response and High sensitivity 
  • Can detect Methane, Butane, LPG, smoke 
  • Digital(HIGH/LOW) and analog(0V-5V) exit 
  • With LM393 comparator 
  • Voltage: 5V 
  • Comes with soldered 4-pin angled male header.&nbs;
  • Power dissipation: 150mA 
  • DO Output: 0.1-5V 
  • Output of AO: 0.1-0.3V 
  • Concentration detectable: 300-10000 ppm 
  • Dual signal output (analog output and output TTL level) TTL output 
  • Dimensions: 32mm x 22mm x 27mm
The Analog Gas Sensor(MQ2) module utilizes an MQ-2 as the sensitive component and has a protection resistor and an adjustable resistor onboard. The MQ-2 gas sensor is sensitive to LPG, i-butane, propane, methane, alcohol, Hydrogen and smoke. It could be used in gas leakage detecting equipment in family and industry. It takes a short time to heat up in order to work correctly. The resistance of the sensitive component changes as the concentration of the target gas changes. It has a high sensitivity and fast response time and the sensitivity can be adjusted by the potentiometer.

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