MQ-6 LPG Gas Sensor

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The MQ series of gas sensors use a small heater inside with an electrochemical sensor. They are sensitive to a range of gasses and are used indoors at room temperature. The output is an analog signal and can be read with an analog input of the Arduino.

This is a simple-to-use liquefied petroleum gas (LPG) sensor, suitable for sensing LPG (composed of mostly propane and butane) concentrations in the air. The MQ-6 can detect gas concentrations anywhere from 200 to 10000ppm.

This sensor has a high sensitivity and fast response time. The sensor’s output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.

This sensor comes in a package similar to our MQ-3 alcohol sensor, and can be used with the breakout board below.

1. Analog output voltage with concentration, the higher concentration, the higher voltage.

2. Has long service life and reliable stability

3. Rapid response recovery features

Specification:

Input voltage: DC5V

Power consumption (current) : 150 mA

AO output: 0.1-0.3 V (pollution-free)

Highest concentration of voltage: Approx 4 V

Detection range of alcohol: detection range of 10 ~ 1000 PPM

Connection mode:

1. VCC: Positive (5 v)