MQ-3 Gas and Alcohol Vapor Sensor Module - Waveshare 9530

Integrated gas sensor, pressure, humidity and temperature in the LGA-8 housing. Bosch Sensortec BME680

Module with BME680 sensor for measuring the concentration of volatile organic compounds (VOC), pressure, temperature and humidity. I2C or SPI communication. DFRobot SEN0375

A sensor that detects the concentration of hydrogen fluoride. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0475

Module with SGP30 gas sensor. The sensor communicates via the I2C interface. SGP30 system contains several elements reacting to various metal oxides, which allows for more accurate determination of air quality. Adafruit 3709

Module with an analog MQ7 carbon monoxide sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0132

A sensor that detects the concentration of sulfur dioxide. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0470

Module with the MQ3 analog alcohol sensor. It allows you to detect gas and build a simple breathalyzer. The module is powered by 5 V and has an analog output

Formaldehyde sensor (HCHO) dedicated to measuring ambient air quality. It is used to detect whether the surrounding environment exceeds a set concentration threshold. It is powered by a voltage of 5 V to 24 V and has an output in the form of a two-state digital signal. DFRobot SEN0595

Air quality sensor module based on SGP30 system. The board has been equipped with Qwiic connectors. SparkFun SEN-16531

The sensor is designed for indoor air quality testing. The main gas detected is carbon monoxide, alcohol, acetone, thinner, formaldehyde and other slightly toxic gases. It is compatible with 5V and 3.3V power supply. Seeed Studio 101020078

A sensor used to detect air pollutants by measuring VOCs and gases such as ammonia or hydrogen sulfide. It is used in various areas, such as the food industry, chemical industry, air quality control in laboratories and environmental monitoring. Figaro TGS2602

Module with an oxygen concentration sensor in the environment. It allows you to measure the volume of oxygen in the range from 0 to 100%. It communicates via the I2C interface. DFRobot SEN0496

Methane sensor module made in MEMS technology. It allows gas detection in the range of 1 to 10000 ppm and has an analog output. DFRobot SEN0565

Gravity: Formaldehyde (HCHO) Sensor is a module for measuring the concentration of formaldehyde (methane) in the air. It can be supplied with voltage in the range of 3.3 ... 6V. DFRobot SEN0231

Module with BME680 for measuring the concentration of VOC, pressure, temperature and humidity. Equipped with a STEMMA QT connector, it communicates via I2C or SPI. Adafruit 3660