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.

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Items 1-25 of 39

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  1. PiicoDev Air Quality Sensor ENS160
    Rating:
    100% of 100
    SKU: CE08560 Brand: PiicoDev Guides (2)

    Measure indoor air-quality - sensitive to fumes, cooking smells, humans.

    - +

    35 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  2. Adafruit SGP30 Air Quality Sensor Breakout - VOC and eCO2 - STEMMA QT / Qwiic
    SKU: ADA3709 Brand: Adafruit
    Breathe easy with the SGP30 Multi-Pixel Gas Sensor, a fully integrated MOX gas sensor. This is a very fine air quality sensor from the sensor experts at Sensirion...
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    3 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  3. Adafruit SCD-30 - NDIR CO2 Temperature and Humidity Sensor - STEMMA QT / Qwiic
    Rating:
    100% of 100
    SKU: ADA4867 Brand: Adafruit
    Take a deep breath in...now slowly breathe out. Mmm isn't it wonderful? All that air around us, which we bring into our lungs, extracts oxygen from, and then breathe out carbon dioxide. CO2 is essential for life on this planet we call Earth - we and plants take turns using and emitting CO2 in an elegant symbiosis. But it's important to keep that CO2 balanced - you don't want too much around, not good for humans and not good for our planet.
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    2 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  4. Adafruit PMSA003I Air Quality Breakout - STEMMA QT / Qwiic
    Rating:
    100% of 100
    SKU: ADA4632 Brand: Adafruit
    Breathe easy, knowing that you can track and sense the quality of the air around you with this Adafruit PMSA003I Air Quality Breakout. This sensor is great for monitoring air quality, in a compact plug-in format.

    Out of Stock

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  5. Gravity: I2C Oxygen Sensor
    SKU: SEN0322 Brand: DFRobot
    The Gravity: I2C Oxygen Sensor is based on electrochemical principles and it can measure the ambient O2 concentration accurately and conveniently. With high anti-interference...
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 10 to 16 day lead time
  6. Analog Gas Sensor(MQ2)
    SKU: SEN0127 Brand: DFRobot
    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.
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    2 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  7. Pololu Carrier for MQ Gas Sensors (Bare PCB Only)
    Rating:
    100% of 100
    SKU: POLOLU-1479 Brand: Pololu
    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.
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 5 to 9 day lead time
  8. Adafruit SCD-41 - NDIR CO2 Temperature and Humidity Sensor - STEMMA QT / Qwiic
    Rating:
    100% of 100
    SKU: ADA5190 Brand: Adafruit
    Take a deep breath in...now slowly breathe out. Mmm isn't it wonderful? All that air around us, which we bring into our lungs, extracts oxygen from...
    - +

    4 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  9. Optical Dust Sensor - GP2Y1010AU0F
    Rating:
    100% of 100
    SKU: COM-09689 Brand: Sparkfun
    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.
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 5 to 8 day lead time
  10. Particulate Matter Sensor - SPS30
    SKU: SEN-15103 Brand: Sparkfun
    The Sensirion Particulate Matter Sensor SPS30 is a compact, high quality, optical particle sensor that uses laser scattering and Sensirion’s innovative contamination...
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 5 to 8 day lead time
  11. Gravity: PWM Infrared CO2 Sensor For Arduino (0~5000 ppm)
    Rating:
    100% of 100
    SKU: SEN0219 Brand: DFRobot
    The concentration of carbon dioxide (0.03% usuallly) is related to daily life. Recently, there’s a study showing that the atmospheric CO2 content has reached 0.0385% (385 ppm) which is the highest value since 2.1 million years. The raise of atmospheric CO2 content to some extent results in global climate change. How to accurately measure the carbon dioxide gas concentration is becoming a universal research topic.
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 10 to 16 day lead time
  12. Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / Qwiic
    SKU: ADA5187 Brand: Adafruit
    Take a deep breath in...now slowly breathe out. Mmm isn't it wonderful? All that air around us, which we bring into our lungs, extracts oxygen from...

    Out of Stock

    Sign up to get notified when it's available to order.

  13. Grove - Multichannel Gas Sensor v2
    SKU: SS101020820 Brand: Seeed Studio
    Worried about not recognizing the gas around your workplace or other surroundings and environment? Here comes the excellent solutions we offer! Grove - Multichannel Gas Sensor V2 has 4 measuring units, each of them is sensitive to various kinds of gases, which means you are able to get four sets of data at the same time.
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 10 to 16 day lead time
  14. SCD41 CO2 Sensor Breakout (Carbon Dioxide / Temperature / Humidity)
    SKU: PIM587 Brand: Pimoroni
    A true carbon dioxide sensor that can detect CO2 levels between 400 and 5,000 ppm, mounted on a Breakout Garden and Qw/ST-compatible breakout. SCD41 is...

    Out of Stock

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  15. Analog Gas Sensor(MQ5)
    SKU: SEN0130 Brand: DFRobot
    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.
    - +

    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 10 to 16 day lead time
  16. Analog CO/Combustible gas sensor (MQ9)
    SKU: SEN0134 Brand: DFRobot
    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.
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 10 to 16 day lead time
  17. CO2 Sensor - STC31 (Qwiic)
    SKU: SPX-18385 Brand: Sparkfun
    Do you need to be able to sense CO2 concentrations of up to 100%? If so, the STC31 is the sensor for you! The Sensirion STC31 thermal conductivity sensor h...
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 5 to 8 day lead time
  18. Hydrogen Gas Sensor - MQ-8
    SKU: SEN-10916 Brand: Sparkfun
    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.
    - +

    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 5 to 8 day lead time
  19. LPG / Isobutane / Propane Gas Sensor MQ-6
    Rating:
    100% of 100
    SKU: POLOLU-1481 Brand: Pololu
    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.
    - +

    4 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  20. Gravity: SO2 Sensor (Calibrated) - I2C & UART
    SKU: SEN0470 Brand: DFRobot
    The factory-calibrated sulfur dioxide sensor has a variety of signal output methods to meet various communication needs...
    - +

    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 10 to 16 day lead time
  21. Methane CNG Gas Sensor - MQ-4
    SKU: SEN-09404 Brand: Sparkfun
    This is a simple-to-use compressed natural gas (CNG) sensor, suitable for sensing natural gas (composed of mostly Methane [CH4]) concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000ppm.
    - +

    1 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  22. Analog Alcohol Sensor(MQ3)
    SKU: SEN0128 Brand: DFRobot
    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.
    - +

    1 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  23. Analog Carbon Monoxide Sensor (MQ7)
    SKU: SEN0132 Brand: DFRobot
    The MQ7 is a simple-to-use Carbon Monoxide (CO) sensor suitable for sensing CO concentrations in the air.
    - +

    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 10 to 16 day lead time
  24. Pimoroni MAX30105 Breakout - Heart Rate, Oximeter, Smoke Sensor
    SKU: CE06393 Brand: Pimoroni
    The MAX30105 breakout is a sophisticated heart rate, oximeter, and smoke/particle sensor. Use it as a fun way to see your heartbeat, or to make LEDs or lights pulse in time with your heart. <3 It's Raspberry Pi and Arduino-compatible.
    - +

    3 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
  25. Adafruit ENS160 MOX Gas Sensor - Sciosense CCS811 Upgrade - STEMMA QT / Qwiic
    SKU: ADA5606 Brand: Adafruit
    *sniff* *sniff* ... do you smell that? No need to stick your nose into a carton of milk anymore, you can build a digital nose with the ENS160 Gas Sensor,...
    - +

    2 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by May 28th
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