STEMMA QT SCD-40 - module with CO2, temperature and humidity sensor

Module with an ozone detection sensor that performs measurements in the range of up to 10 ppm with a resolution of 0.01 ppm. The module is equipped with an I2C interface. DFRobot SEN0321

Volatile gas sensor module, including LPG, natural gas, natural gas

The module with a smoke sensor and flammable gases (MQ-2) allows the measurement of gas concentrations such as natural gas, hydrogen as well as smoke and ethanol. The module has an analogue output and an output triggered by exceeding the threshold of sensitivity. modMQ-2

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

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

Module with air quality sensor SGP30. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020512

Air quality sensor module based on the ENS160 system. It communicates via the I2C interface (Gravity connector). DFRobot SEN0514

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

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

Sensor that detects the concentration of chlorine. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0468

Air quality sensor module based on the SGP40 system. The board is equipped with Qwiic connectors. SparkFun SEN-18345

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

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 a gas concentration sensor MQ9, which enables the detection of carbon monoxide and combustible gases (methane, propane). The board is equipped with a Grove connector and communicates via an analog interface. Seeed Studio 101020045

Module with gas sensor SGP30. It allows you to measure the content of total volatile organic compounds (TVOC), carbon dioxide equivalent (eCO2), ethanol and H2 in the air. M5Stack U088

Module with CO2, temperature and humidity sensor SCD-30. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 4867