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Whether it's detecting flammable gas, alcohol, or just small particles such as dust or smoke, our gas & smoke sensors are easy to get started with.

We've got pre-soldered modules, or sensors by themselves with a breakout board for easy integration with your project.

  1. Pololu Carrier for MQ Gas Sensors (Bare PCB Only) POLOLU-1479 Pololu Australia - Express Delivery Australia Wide

    Pololu Carrier for MQ Gas Sensors (Bare PCB Only)

    SKU: POLOLU-1479
    This carrier board is designed to work with any of the MQ-series gas sensors, simplifying the interface from 6 to 3 pins—ground, power and analog voltage output—that are broken out with a 0.1" spacing, making the board compatible with 0.1" headers and standard breadboards and perfboards. This board has two mounting holes and provides convenient pads for mounting the gas sensor’s required sensitivity-setting resistor. Learn More
    $1.66 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 28th of Sep

    $1.66 AUD

  2. Flammable Gas & Smoke Sensor MQ-2 POLOLU-1480 Pololu Australia - Express Delivery Australia Wide

    Flammable Gas & Smoke Sensor MQ-2

    SKU: POLOLU-1480
    This semiconductor gas sensor detects the presence of combustible gas and smoke at concentrations from 300 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller. Learn More
    $5.52 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 28th of Sep

    $5.52 AUD

  3. Alcohol Gas Sensor MQ-3 POLOLU-1634 Pololu Australia - Express Delivery Australia Wide

    Alcohol Gas Sensor MQ-3

    SKU: POLOLU-1634
    This semiconductor gas sensor detects the presence of alcohol gas at concentrations from 0.04 mg/L to 4 mg/L, a range suitable for making a breathalyser. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller. Learn More
    $6.76 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 5th of Oct

    $6.76 AUD

  4. Methane Gas Sensor MQ-4 POLOLU-1633 Pololu Australia - Express Delivery Australia Wide

    Methane Gas Sensor MQ-4

    SKU: POLOLU-1633
    This semiconductor gas sensor detects the presence of methane (CNG) gas at concentrations from 300 ppm to 10,000 ppm, a range suitable for detecting gas leaks. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller. Learn More
    $7.46 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 5th of Oct

    $7.46 AUD

  5. LPG / Isobutane / Propane Gas Sensor MQ-6 POLOLU-1481 Pololu Australia - Express Delivery Australia Wide

    LPG / Isobutane / Propane Gas Sensor MQ-6

    SKU: POLOLU-1481
    This semiconductor gas sensor detects the presence of LPG, isobutane, and propane at concentrations from 300 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller. Learn More
    $7.46 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 5th of Oct

    $7.46 AUD

  6. Carbon Monoxide Gas Sensor MQ-7 POLOLU-1482 Pololu Australia - Express Delivery Australia Wide

    Carbon Monoxide Gas Sensor MQ-7

    SKU: POLOLU-1482
    This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller. Learn More
    $10.48 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 5th of Oct

    $10.48 AUD

  7. Hydrogen Gas Sensor - MQ-8 SEN-10916 Sparkfun Australia - Express Delivery Australia Wide

    Hydrogen Gas Sensor - MQ-8

    SKU: SEN-10916
    This is a simple-to-use hydrogen gas sensor, suitable for sensing hydrogen concentrations in the air. The MQ-8 can detect hydrogen gas concentrations anywhere from 100-10000ppm. Learn More
    $12.38 AUD, inc GST
    AUD, inc GST
    delivered by
    Mon 2nd of Oct

    $12.38 AUD

  8. Carbon Monoxide & Flammable Gas Sensor MQ-9 POLOLU-1483 Pololu Australia - Express Delivery Australia Wide

    Carbon Monoxide & Flammable Gas Sensor MQ-9

    SKU: POLOLU-1483
    This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 1,000 ppm and combustible gas from 100 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller. Learn More
    $10.48 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 28th of Sep

    $10.48 AUD

  9. Analog Gas Sensor(MQ2) SEN0127 DFRobot Australia - Express Post Australia Wide

    Analog Gas Sensor(MQ2)

    SKU: SEN0127
    The analog gas sensor - MQ2 is used in gas leakage detecting equipments in consumer and industry markets, this sensor is suitable for detecting LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke. Learn More
    $11.65 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 28th of Sep

    $11.65 AUD

  10. Analog Alcohol Sensor(MQ3) SEN0128 DFRobot Australia - Express Post Australia Wide

    Analog Alcohol Sensor(MQ3)

    SKU: SEN0128
    The analog gas sensor - MQ3 is suitable for detecting alcohol, this sensor can be used in a Breathalyser.It has a high sensitivity to alcohol and small sensitivity to Benzine. Learn More
    $11.65 AUD, inc GST
    AUD, inc GST
    delivered by
    Mon 2nd of Oct

    $11.65 AUD

  11. Analog Gas Sensor(MQ4) SEN0129 DFRobot Australia - Express Post Australia Wide

    Analog Gas Sensor(MQ4)

    SKU: SEN0129
    The MQ4 is used in gas leakage detecting equipment in consumer and industry markets,this sensor is suitable for detecting CH4,Natural gas, LNG, avoid exposure to alcohol, cooking fumes, and cigarette smoke. The sensitivity can be adjusted by the potentiometer. Learn More
    $11.65 AUD, inc GST
    AUD, inc GST
    delivered by
    Mon 2nd of Oct

    $11.65 AUD

  12. Analog Gas Sensor(MQ5) SEN0130 DFRobot Australia - Express Post Australia Wide

    Analog Gas Sensor(MQ5)

    SKU: SEN0130
    The MQ5 is used in gas leakage detecting equipment in consumer and industry applications,this sensor is suitable for detecting LPG, natural gas, coal gas. Learn More
    $11.65 AUD, inc GST
    AUD, inc GST
    delivered by
    Mon 2nd of Oct

    $11.65 AUD

  13. Analog LPG Gas Sensor(MQ6) SEN0131 DFRobot Australia - Express Post Australia Wide

    Analog LPG Gas Sensor(MQ6)

    SKU: SEN0131
    The MQ6 is a simple-to-use liquefied petroleum gas (LPG) sensor. It can be used in gas leakage detecting equipment in consumer and industry applications,this sensor is suitable for detecting LPG, iso-butane, propane, LNG. Learn More
    $11.65 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 28th of Sep

    $11.65 AUD

  14. Analog Carbon Monoxide Sensor (MQ7) SEN0132 DFRobot Australia - Express Post Australia Wide

    Analog Carbon Monoxide Sensor (MQ7)

    SKU: SEN0132
    The MQ7 is a simple-to-use Carbon Monoxide (CO) sensor suitable for sensing CO concentrations in the air. Learn More
    $16.12 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 28th of Sep

    $16.12 AUD

  15. Analog Hydrogen Gas Sensor (MQ8) SEN0133 DFRobot Australia - Express Post Australia Wide

    Analog Hydrogen Gas Sensor (MQ8)

    SKU: SEN0133
    This is a simple-to-use hydrogen gas sensor.They are used in gas leakage detecting equipments in home and industry applications. Learn More
    $17.11 AUD, inc GST
    AUD, inc GST
    delivered by
    Mon 2nd of Oct

    $17.11 AUD

  16. Analog CO/Combustible gas sensor (MQ9) SEN0134 DFRobot Australia - Express Post Australia Wide

    Analog CO/Combustible gas sensor (MQ9)

    SKU: SEN0134
    MQ-9 gas sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor can be used to detect different gases containing CO and combustible gases, it is low cost and suitable for different applications. Learn More
    $19.59 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 28th of Sep

    $19.59 AUD

  17. Optical Dust Sensor - GP2Y1010AU0F COM-09689 Sparkfun Australia - Express Delivery Australia Wide

    Optical Dust Sensor - GP2Y1010AU0F

    SKU: COM-09689
    Sharp’s GP2Y1010AU0F is an optical air quality sensor, designed to sense dust particles. An infrared emitting diode and a phototransistor are diagonally arranged into this device, to allow it to detect the reflected light of dust in air. It is especially effective in detecting very fine particles like cigarette smoke, and is commonly used in air purifier systems. Learn More
    $20.27 AUD, inc GST
    AUD, inc GST
    delivered by
    Thu 28th of Sep

    $20.27 AUD

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