Gas & Air Quality Sensors

SKU: DF-SEN0473 | Brand: DFRobot

This is a sensor that detects hydrogen 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 concentration of ...

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-SEN0471 | Brand: DFRobot

This is a sensor that detects nitrogen dioxide 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 concentra...

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: DF-SEN0468 | Brand: DFRobot

This is a sensor that detects chlorine 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 concentration of ...

SKU: DF-SEN0472 | Brand: DFRobot

This is a sensor that detects ozone 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 concentration of ozo...

SKU: DF-SEN0476 | Brand: DFRobot

This is a sensor that detects phosphine 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 concentration of...

SKU: DF-SEN0440 | Brand: DFRobot

A compact MEMS gas sensor breakout based on the MiCS-5524, capable of detecting concentrations of multiple gases including carbon monoxide (CO), methane (CH4), ethanol (C2H5OH), propane (C3H8), butane (C4H10), hydroge...

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-SEN0441 | Brand: DFRobot

This is a hydrogen and nitrogen oxide gas concentration sensor launched by DFRobot. The sensor uses MEMS technology to support gas concentration detection of NO, NO2 and H2. The matching sample code integrates the co...

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-EF04100 | Brand: ElecFreaks

Octopus MG811 CO2 Gas Sensor is a CO2 electronic brick in our OCTOPUS series, the basic design for the outlook, PCB fixing holes and connections are the same with them.The higher the CO2 concentration is, the lower th...

SKU: EF-EF04090 | Brand: ElecFreaks

The Octopus PM2.5 module from ElecFreaks is a laser-based particulate matter sensor built around the ZH03B dust sensor. It measures PM2.5 concentration in the air with high consistency and real-time response, capable ...

SKU: DF-SEN0321 | Brand: DFRobot

The Gravity IIC Ozone Sensor measures ozone (O₃) concentration from 0 to 10 ppm with 10 ppb resolution using an electrochemical sensing element. Factory-calibrated for accurate readings out of the box, it connects via...

SKU: AF-4505 | Brand: Adafruit

The PMSA003I is a compact particulate matter sensor that measures PM1.0, PM2.5, and PM10.0 concentrations using laser scattering. Unlike most PM sensors that use UART, this version features an I2C interface, making it...