Fermion: MEMS Smoke Gas Detection Sensor - a module with a smoke concentration sensor

Digital gas sensor solution that senses a wide range of Total Volatile Organic Compounds (TVOCs), including equivalent carbon dioxide (eCO2) and metal oxide (MOX) levels, intended for indoor air quality monitoring in personal devices such as watches and phones, but we’ve put it on a breakout board so you can use it as a regular I2C device. SEN-14193

Gravity: Analog Infrared CO2 Sensor is a high precision analogue CO2 sensor. It measures CO2 content in the range of 0 ... 5000ppm and is compatible with all devices with ADC function. DFRobot SEN0219

Module with ethanol sensor made in MEMS technology. It allows gas detection in the range of 1 to 500 ppm and has an analog output. DFRobot SEN0569

The module with the natural gas and LPG concentration sensor (modMQ-5) allows the measurement of the concentration of natural gas, carbon monoxide, alcohol and methane. The module has an analogue output and an output triggered by exceeding the threshold of sensitivity.

Module with an analog MQ2 gas sensor. It enables the detection of LPG, butane, propane, methane, alcohol, hydrogen and smoke. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0127

Adapter for MQ gas sensor with potentiometer for analog signal calibration. MOD 72

The MQ-3 sensor allows you to measure the concentration of alcohol vapors. The measuring range of the sensor is in the range of 0.05 mg / L to 10mg / L, and an analogue signal is obtained at the output.

Module with an analog MQ2 gas sensor. It enables the detection of LPG, butane, propane, methane, alcohol, hydrogen and smoke. It is powered with the voltage of 5 V and has an analog output

Module with an analog sensor of carbon monoxide and combustible gases (methane, propane) MQ9. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0134

A sensor used to detect pollutants in the air by measuring gases such as hydrogen, ethanol and carbon monoxide. It is used in various areas, such as the food industry, chemical industry, air quality control in laboratories and environmental monitoring. Figaro TGS2600

Module with integrated BME688 gas, pressure, temperature and humidity sensor placed in one MEMS housing. It is equipped with an I2C interface. Adafruit 5046

The SCD-40 CO2, temperature and humidity sensor module provides high accuracy readings. It is equipped with a Qwiic connector and communicates via an I2C interface. SparkFun SEN-22395

Module with gas sensor designed to monitor indoor air quality. It was based on the AMS CCS811 system that allows the detection of volatile organic compounds (VOCs) in the air. Digilent 410-386

Module with a knock-on sensor for measurement of methane, propane and carbon monoxide (MQ-9) concentrations. The module has an analogue output and an output triggered by exceeding the threshold of sensitivity.

Module with CO2, temperature and humidity sensor SCD-41. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 5190