MQ-2 Gas sensor breakout moduleSold By Bazinga!, Ships from Singapore
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Description This flammable gas and smoke sensor detects the concentrations of combustible gas in the air and ouputs its reading as an analog voltage. The sensor can measure concentrations of flamma...Read More…
This flammable gas and smoke sensor detects the concentrations of combustible gas in the air and ouputs its reading as an analog voltage. The sensor can measure concentrations of flammable gas of 300 to 10,000 ppm.The sensor can operate at temperatures from -20 to 50°C and consumes less than 150 mA at 5 V.
Dimensions: 1.57 in x 0.91 in x 0.71 in (4.0 cm x 2.3 cm x 1.8 cm)
(Bottom side - Away from sensor)
(Top side - Same as sensor)
High sensitivity to LPG, Propane, Hydrogen, etc
Connecting five volts across the heating (H) pins keeps the sensor hot enough to function correctly. Connecting five volts at either the A or B pins causes the sensor to emit an analog voltage on the other pins. A resistive load between the output pins and ground sets the sensitivity of the detector. Please note that the picture in the datasheet for the top configuration is wrong. Both configurations have the same pinout consistent with the bottom configuration.The resistive load should be calibrated for your particular application using the equations in the datasheet, but a good starting value for the resistor is 20 kΩ.
This breakout board takes care of the configuration and makes it easy to interface with your instrument of choice.
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Singapore Post: Registered Airmail (Small items)
DHL: DHL Express Worldwide
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