Gas & Air Quality Sensors

SKU: SF-SEN-19325 | Brand: SparkFun

The SEN54 sensor module from Sensirion combines the measurement of particulate matter, VOC, humidity, and temperature in a single package. The SEN54 sensors provide fully calibrated outputs with a digital interface, a...

SKU: DF-SEN0474 | Brand: DFRobot

This is a sensor that detects hydrogen chloride concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentr...

SKU: SF-SEN-18632 | Brand: SparkFun

The SparkFun MicroMod Environmental Function Board adds additional sensing options to the MicroMod Processor Boards. This Function Board includes three sensors to monitor air quality (SGP40), humidity & temperature (S...

SKU: DF-SEN0392 | Brand: DFRobot

The SGP40 Air Quality sensor adopts the new SGP40 digital VOC sensor chip launched by the well-known Sensirion. Based on the Sensirion’s CMOSens® technology, the SGP40 offers a complete sensor system on a single chip,...

SKU: DF-SEN0375 | Brand: DFRobot

BME680 is a 4-in-1 multi-functional MEMS environmental sensor which integrates VOC (Volatile Organic Compounds) sensor, temperature sensor, humidity sensor and barometer. It is designed for air quality monitor, and du...

SKU: SF-SEN-17050 | Brand: SparkFun

The MQ-9B is a CO and CH₄ gas detection sensor form Winsen. The sensing material of the MQ-9B is SnO2, which has a low conductivity in clean air. It detects carbon monoxide (1.5V) by method of cycling high and low tem...

SKU: SF-SEN-17049 | Brand: SparkFun

The MQ-2 is a smoke and combustible gas sensor manufactured by Winsen. It detects flammable gases and smoke in a concentration range of 300–10,000 ppm, with particularly high sensitivity to propane and smoke. It's wid...

SKU: SF-SEN-17052 | Brand: SparkFun

The MQ-136 is a Hydrogen Sulfide detection sensor with a sensing range of 1 - 200ppm. The sensing element is SnO2, which has lower conductivity in clean air. When H₂S gas exists, the sensor’s conductivity gets higher ...

SKU: SF-SEN-17053 | Brand: SparkFun

The MQ-137 is an ammonia (NH3) gas sensor from Winsen, designed to detect ammonia concentrations in the air. The sensing element is tin dioxide (SnO2), which has lower conductivity in clean air and increases in conduc...

SKU: EF-EF04029 | Brand: ElecFreaks

An analogue gas sensor module based on the MQ-2 sensor, part of the Octopus Electronic Bricks series for plug-and-play integration with Arduino and compatible boards. Detects a wide range of combustible gases and smok...

SKU: DF-SEN0131 | Brand: DFRobot

INTRODUCTION This is an Arduino Propane Gas Sensor. It uses MQ6 probe to detect iso-butane, propane and liquefied petroleum gas (LPG). It is less sensitive with alcohol, cooking fumes an...

SKU: PL-1483 | Brand: Pololu

This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 1,000 ppm and combustible gas from 100 to 10,000 ppm. The sensor’s simple analog voltage interface requires ...

SKU: DF-SEN0128 | Brand: DFRobot

An analogue alcohol gas sensor based on the MQ-3 probe, designed for use with Arduino and other microcontrollers. The sensor outputs a voltage proportional to the concentration of alcohol vapour in the surrounding air...

SKU: AF-3199 | Brand: Adafruit

The Adafruit MiCS-5524 Gas Sensor Breakout is a robust MEMS sensor from SGX Sensortech for detecting carbon monoxide, natural gas leaks, alcohol, and volatile organic compounds (VOCs). It provides a simple analogue vo...

SKU: DF-SEN0231 | Brand: DFRobot

The Formaldehyde (HCHO) sensor is an Arduino & Raspberry Pi compatible module, which is the ideal solution for indoor air quality monitor. This is a HCHO(CH2O) sensor module. It can be used to measure HCHO in a...

SKU: SF-SEN-09403 | Brand: SparkFun

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO-gas concentrations anywhere from 20 to 2000ppm. This sensor has a high sensitivity and f...

SKU: DF-SEN0377 | Brand: DFRobot

This is a 3.3/5V compatible MEMS gas concentration sensor from DFRobot.  This sensor supports the detection of various gas concentrations like CO, C2H5OH (Alcohol), H2, NO2, NH3, and integrates various gas c...

SKU: AF-3709 | Brand: Adafruit

The Adafruit SGP30 is a multi-pixel MOX (metal-oxide) gas sensor from Sensirion that measures Total Volatile Organic Compounds (TVOC) and equivalent CO2 (eCO2) for indoor air quality monitoring. With fully calibrated ...

SKU: SS-101020044 | Brand: Seeed Studio

Alcohol sensor is semiconductor sensor for alcohol detection. It has good sensitivity and fast response to alcohol, suitable for portable alcohol detector. Specifications Power requirements: 5 VDC @ ~120 ...

SKU: PL-1633 | Brand: Pololu

This semiconductor gas sensor detects the presence of methane (CNG) gas at concentrations from 300 ppm to 10,000 ppm, a range suitable for detecting gas leaks. The sensor’s simple analog voltage interface re...