All Products

SKU: SF-SEN-09403

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 fast response time. The sensor’s output is an analog resistance. The drive circui...

SKU: DF-SEN0128

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, making it suitable for breathalyser-style projects, air quality monitoring, an...

SKU: DF-FIT0227

The MQ7 is a simple-to-use Carbon Monoxide (CO) sensor suitable for detecting CO concentrations in the air. It offers a wide detection range from 20 to 2000 ppm, making it ideal for safety monitoring and air quality projects. The sensor outputs an analog resistance that varies with CO concentrat...

SKU: DF-SEN0132

INTRODUCTION This is an Arduino Carbon Monoxide Sensor. It uses MQ7 probe to detect Carbon Monoxide (CO) concentrations in the air from 20 to 2000ppm. The sensitivity can be adjusted by the potentiometer. The output is proportional to the density o...

SKU: LB-LR0205

An alcohol sensor module for Arduino with both digital (TTL) and analog output. It detects alcohol vapour in the 10–1000 PPM range, with analog output voltage increasing proportionally with concentration. The module also responds to LPG, natural gas, city gas, and smoke. The board features a pow...

SKU: EF-EF04029

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 smoke with high sensitivity and fast response time. Detectable Gases LPG, i-butane...

SKU: EF-EF04060

The Octopus MQ3 Alcohol Sensor Brick from ElecFreaks is an analogue gas sensor module with high sensitivity to alcohol vapour. It outputs an analogue voltage proportional to the detected alcohol concentration, making it straightforward to interface with Arduino and other microcontrollers. The MQ...

SKU: DF-SEN0321

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 I2C through DFRobot's Gravity 4-pin interface. Compatible with Arduino, ESP32,...

SKU: SF-SEN-17049

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 widely used in domestic gas leakage alarms and portable gas detectors. The sensing...

SKU: DF-SEN0376

This is an Arduino compatible alcohol sensor module from DFRobot with a 0-5ppm measuring range, supporting I2C and UART outputs. Aiming at fast and accurate detection of alcohol gas concentration in the air, the sensor is well applicable to the small alcohol concentration measurement in...

SKU: DF-SEN0468

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 chlorine in the environment. Can be widely used in the detection of chlorine in ...

SKU: DF-SEN0466

This is a sensor that detects carbon monoxide 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 carbon monoxide in the environment. Can be widely applied to fields like portable devic...

SKU: DF-SEN0465

This is a sensor that detects oxygen 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 oxygen in the environment. Can be widely applied to fields like portable devices, ...

SKU: DF-SEN0467

This is a sensor that detects hydrogen sulfide 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 hydrogen sulfide in the environment. Can be widely used in the detection...

SKU: DF-SEN0678 · MPN: SEN0678

This Gravity air quality module uses Sensirion’s STCC4 gas sensing chip to directly measure carbon dioxide with the thermal conductivity measurement principle. It is designed for compact, cost-effective indoor monitoring nodes where stable CO₂ readings are needed without complex hardware integrat...

SKU: AF-6482 · MPN: ADA6482

Built around Texas Instruments' TMP119, this breakout makes it easy to add extremely accurate temperature monitoring to your project over I2C. It is designed for applications where temperature really matters, including thermostats, cold chain asset tracking, and gas or heat metering, and it can a...

SKU: AF-6478 · MPN: ADA6478

This compact breakout combines the STCC4 CO2 sensor with a Sensirion SHT41 temperature and humidity sensor for convenient indoor air monitoring. The STCC4 measures true CO2 using a thermal conductivity method rather than estimating from VOCs, and the onboard SHT41 helps improve the CO2 measuremen...

SKU: PR-PIM357

The state-of-the-art BME680 breakout lets you measure temperature, pressure, humidity, and indoor air quality, and is Raspberry Pi and Arduino-compatible! Use this breakout to monitor every aspect of your indoor environment. Its gas resistance readings will react to changes in volatile organic...

SKU: DF-SEN0231

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 air. Through it, you can know the air quality. This sensor module is widely used ...

SKU: DF-SEN0219

The concentration of carbon dioxide (0.03% usuallly) is related to daily life. Recently, there's a study showing that the atmospheric CO2 content has reached 0.0385% (385 ppm) which is the highest value since 2.1 million years. The raise of atmospheric CO2 content to some extent results in gl...