Environmental (temperature, humidity, air quality)

This is a hydrogen and nitrogen oxide gas concentration sensor launched by DFRobot. The sensor uses MEMS technology to support gas concentration d...

Do you need to be able to sense CO2 concentrations of up to 100%? If so, the STC31 is the sensor for you! The Sensirion STC31 thermal conductivity ...

This SparkFun Qwiic Digital Temperature Sensor Breakout provides a combination of high temperature accuracy with excellent low power consumption us...

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® t...

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® t...

Here is a jolly cute, palm-sized, Bluetooth-enabled sensor to monitor your room's temperature and humidity. Only 43mm x 43mm, we dig its small form...

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...

The SparkFun SGP40 Air Quality Sensor provides a measurement of the quality of the air in your room or house. The Sensirion metal oxide (MOx) senso...

Breathe easy - we finally have an I2C VOC/eCO2 sensor in the Adafruit shop! Add air quality monitoring to your project and with an Adafruit CCS811 ...

This is a high-precision temperature control module, it can not only show the temperature, but also according to the current temperature of the ...

Japan's Hokuriku resistive humidity sensor production as a Temperature & Humidity sensor.Application Idea Test and testing equipment; Automatic...

Cooling fans...They're everywhere, and they serve the important purpose of keeping things cool, generally electronics. One might rightfully think: ...

Living through this pandemic has made contactless temperature sensing a must! The Qwiic IR Thermometer utilizes the MLX90614 temperature sensor you...

The TMP117 Precision Temperature Sensor is an I2C temperature sensor that will help you easily add temperature measurement and adjustment to your p...

BME680 is a 4-in-1 multi-functional MEMS environmental sensor which integrates VOC (Volatile Organic Compounds) sensor, temperature sensor, humidit...

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. I...

The MQ-131 is a low concentration Ozone gas sensor from Winsen. The sensing material for the MQ-131 is WO₃. It will have lower conductivity in clea...

The MQ-2 is a smoke and combustible gas sensor from Winsen. It can detect flammable gas in a range of 300 - 10000ppm. It's most common use is domes...

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 ...

The MQ-137 is an Ammonia (NH₃) gas sensor from Winsen. The sensing element is SnO2, which has lower conductivity in clean air. When NH₃ (Ammonia) g...

Make inflatables or air-powered projects with this simple air pump. It's great for beginner projects and super easy to use! The pump is basically a...

This simple dust sensor is a great way to add basic particulate sensing to your next project. It's not as fully featured as our PM2.5 I2C/UART-base...

Thermally Conductive Adhesive Transfer Tapes are designed to provide a preferential heat-transfer path between heat-generating components and heat ...

Introducing the Auto-Digital Thermostat. The ADT6401 is a trip point temperature switch. Use the SPDT switches to set the temperature trip point an...