Gas sensors & Alcohol sensors
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Barometric pressure sensor/altimeter/temperature/gas sensor - BME680
BME680 4-in-1 Environmental Sensor – Temperature, Humidity, Air Pressure & Air Quality (VOC)
The BME680 is an advanced 4-in-1 MEMS sensor that measures temperature, humidity, air pressure, and VOCs (volatile organic compounds). It offers a complete solution for monitoring air quality and environmental conditions in a single, compact device.
Tha... In stock -
Gas sensor MQ-131 (Ozone, Chlorine, CO2)
The MQ-131 ozone sensor is a compact and powerful sensor for detecting ozone gas (O₃) in the air. The sensor uses tin oxide (SnO₂) as a sensitive material, which responds to the presence of ozone by increasing its conductivity. This change can be easily converted into a readable signal corresponding to the ozone concentration.
The sensor has a... In stock -
Gas sensor MQ-135 (NH3, NOx, alcohol, benzene, smoke, CO2)
MQ-135 Gas sensor for detecting harmful gas (NH3 (ammonia), NOx, alcohol, benzene, smoke, CO2).
- 10 to 10000 ppm.
With an analog output and a digital output via an LM393 comparator.
The analog output of the MQ-135 can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with... In stock -
Gas sensor MQ-135 (NH3, NOx, alcohol, benzene, smoke, CO2) - without breako
MQ-135 Gas detector for detecting harmful gas (NH3 (ammonia), NOx, alcohol, benzene, smoke, CO2).
- 10 to 10000 ppm.
Only the MQ-135 sensor, without breakout board.
Attention! Our MQ gas sensors are ideal for hobby projects and experiments, but they may not be used to ensure life safety. Use them responsibly and always ensure the correct safety m... In stock -
Gas sensor MQ-136 (Hydrogen sulfide sensor (H₂S))
The MQ-136 is a compact sensor for detecting hydrogen sulfide (H₂S) and other harmful gases such as LPG, butane, methane, smoke and alcohol. Due to its high sensitivity and fast response time, this sensor is ideally suited for applications in gas leak detection, air quality monitoring and safety monitoring.
The module has an analog output and a ... -
Gas sensor MQ-137 (Ammonia)
The MQ-137 is a gas sensor specifically designed for the detection of ammonia (NH₃) and other organic amines, such as trimethylamine and ethanolamine. Due to its high sensitivity and reliability, this sensor is ideally suited for air quality measurements in industrial, agricultural or educational applications.
The sensor module provides both an ... In stock -
Gas sensor MQ-138 (Formaldehyde)
The MQ-138 is a versatile gas sensor designed to detect formaldehyde, benzene, alcohols, ketones and other volatile organic compounds (VOCs). This sensor provides both a digital TTL output and an analog voltage output (0–5V), and is easily integrated with microcontrollers such as Arduino or other development boards.
Thanks to its wide detection ... In stock -
Gas sensor MQ-139 (Freon)
The MQ-139 gas sensor breakout is a compact sensor module for detecting volatile organic compounds (VOCs) and solvent gases (Freon). Suitable for applications such as air quality measurements, gas detection, and experimental measurement setups.
Thanks to the breakout board, the sensor can be easily connected to a microcontroller such as an Arduino... In stock -
Gas sensor MQ-2 (LPG, (iso)butane, methane, alcohol, hydrogen gas, smoke)
MQ-2 Gas sensor for detecting gas (LPG, butane, isobutane, methane, alcohol, hydrogen gas, smoke).
- Flammable gas/smoke 300 to 10000 ppm.
With an analog output and a digital output via an LM393 comparator.
The analog output can be read with an Arduino via analogRead.
The digital output of the MQ-2 provides a low or high signal depending on the th... In stock -
Gas sensor MQ-3 (alcohol, ethanol)
MQ-3 Gas sensor for detecting alcohol/ethanol.
- Alcohol gas 0.04 mg/L to 4 mg/L.
The MQ-3 sensor has an analog output and a digital output via an LM393 comparator.
The analog output can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with the potentiometer.
Attention! ... In stock -
Gas sensor MQ-3 (alcohol, ethanol) - without breakout
MQ-3 Gas sensor for detecting alcohol/ethanol.
- Alcohol gas 0.04 mg/L to 4 mg/L.
Only the MQ-3 sensor, without breakout board.
Please note! Our MQ gas sensors are ideal for hobby projects and experiments, but they may not be used to ensure life safety. Use them responsibly and always ensure the correct safety measures in critical situations. Saf... In stock -
Gas sensor MQ-4 (methane, natural gas)
MQ-4 Gas sensor for detecting gas (methane, natural gas).
- Methane 300 ppm to 10000 ppm.
The MQ-4 sensor has an analog output and a digital output via an LM393 comparator.
The analog output can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with the potentiometer.
Ple... In stock -
Gas sensor MQ-5 (methane, LPG, natural gas)
MQ-5 Gas sensor for detecting gas (methane, LPG, natural gas).
- 200 to 10000ppm.
The MQ-5 sensor has an analog output and a digital output via an LM393 comparator.
The analog output can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with the potentiometer.
Please note... In stock -
Gas sensor MQ-6 (LPG, isobutane, propane)
MQ-6 Gas sensor for detecting gas (LPG, isobutane, propane).
- 300 - 10000 ppm.
With an analog output and a digital output via an LM393 comparator.
The analog output on the MQ-6 sensor can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with the potentiometer.
Please no... In stock -
Gas sensor MQ-7 (CO/carbon monoxide)
MQ-7 Gas sensor for detecting gas (CO/carbon monoxide).
- CO 10 - 10000 ppm.
The MQ-7 sensor has an analog output and a digital output via an LM393 comparator.
The analog output can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with the potentiometer.
Attention! Our M... In stock -
Gas sensor MQ-8 (hydrogen gas)
MQ-8 Gas sensor for detecting gas (hydrogen gas).
- 100 - 10000 ppm.
With an analog output and a digital output via an LM393 comparator.
The analog output on the MQ-8 sensor can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with the potentiometer.
Attention! Our MQ ga... In stock -
Gas sensor MQ-9 (CO/carbon monoxide, flammable gas)
MQ-9 Gas sensor for detecting gas (CO/carbon monoxide, flammable gas).
- CO 10-10000 ppm.
- Flammable gas 100-10000 ppm.
With an analog output and a digital output via an LM393 comparator.
The analog output on the MQ-9 sensor can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold val... In stock -
Gas sensor MiCS5524 - Adafruit 3199
Give your next sensor project a nose for gasses with the Adafruit MiCS-5524 Gas Sensor Breakout. This breakout makes it easy to use this nice sensor from SGX Sensortech. The MiCS-5524 is a robust MEMS sensor for indoor carbon monoxide and natural gas leakage detection, it's suitable also for indoor air quality monitoring; breath checker and early f...
Adafruit Part number: 3199
In stock
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Gas sensor bare board
Loose board for installing an MQ gas sensor yourself. With adjustable sensitivity for the digital output.
With LED indicator for power and digital output level.
Operates on 5V DC. In stock -
Gas sensor set MQ sensors 9-piece
Set of 9 MQ gas sensors in a box consisting of the following sensors:
- MQ-2 LPG, (iso)butane, methane, alcohol, hydrogen gas, smoke
- MQ-3 alcohol, ethanol
- MQ-4 methane, natural gas
- MQ-5 LPG, isobutane, propane
- MQ-6 isobutane propane sensor
- MQ-7 CO/carbon monoxide
- MQ-8 hydrogen gas
- MQ-9 CO/carbon monoxide, flammable gas
- MQ-135 Air qu... In stock -
Gas sensor/Air quality meter CCS811
CCS811 Gas Sensor/Air Quality Meter for measuring air quality.
Measures, among other things, CO (carbon monoxide) and volatile organic compound gas.
In stock -
Gas sensor/Air quality sensor AGS10 TVOC I2C
The AGS10 is a compact MEMS sensor for measuring TVOC (Total Volatile Organic Compounds) via digital I²C communication. Thanks to low power consumption, high sensitivity and simple control, this sensor module is ideal for smart air quality projects.
In stock
Specifications:
Supply voltage: 3.0–6.0V
Typical consumption: 75 mW
Interface: I²C (slav... -
Temperature and humidity sensor AHT21 + Air quality sensor ENS160
The ENS160 is a digital multi-gas sensor designed for indoor air quality measurement and detects a wide range of gases such as toluene, hydrogen, ethanol, NO₂ and ozone. Ideal for applications in smart home, building automation, air purification and consumer electronics.
In stock
The AHT21 sensor is a new generation temperature and humidity sensor in ...
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