Environmental (temperature, humidity, air quality)

SKU: AF-1727 | Brand: Adafruit

The MAX31850K breakout board is a 1-Wire thermocouple amplifier with cold-junction compensation for K-type thermocouples. Unlike SPI-based amplifiers, the 1-Wire interface allows any number of thermocouple breakouts t...

SKU: AF-3251 | Brand: Adafruit

The Adafruit Si7021 is a temperature and humidity sensor from Silicon Labs with a PTFE filter for protection against dust and contaminants. It provides ±3% relative humidity accuracy over 0–80% RH and ±0.4 °C temperat...

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: AF-3538 | Brand: Adafruit

Add heat-vision to your project with the Adafruit AMG8833 Grid-EYE Breakout. This sensor from Panasonic contains an 8×8 array of infrared thermal sensors that returns 64 individual temperature readings over I2C — like...

SKU: AF-6478 | Brand: Adafruit

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 t...

SKU: AF-6482 | Brand: Adafruit

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, includin...

SKU: DF-SEN0678 | Brand: DFRobot

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 monitor...

SKU: AF-6455 | Brand: Adafruit

Build a digital nose for indoor air quality projects with this SGP41 gas sensor breakout. The Sensirion SGP41 is a fully integrated MOX gas sensor with I2C interfacing, so you do not need to manage heater control or a...

SKU: DF-SEN0654 | Brand: DFRobot

This lab-grade methane sensor is designed for quantitative CH₄ measurement in research settings, using TDLAS technology to report methane concentration in %LEL rather than the broad estimates typical of MQ-style gas s...

SKU: DF-SEN0664 | Brand: DFRobot

Built around the Bosch BMP585 chip, this Gravity module measures barometric pressure and temperature for altitude, weather and environmental sensing projects. Its gel-filled cavity and industrial protective cover help...

SKU: DF-SEN0475 | Brand: DFRobot

Measure hydrogen fluoride concentration with a factory-calibrated electrochemical probe that supports analogue, I2C and UART output modes. It is designed for quickly building an HF concentration detector for industria...

SKU: DF-SEN0639 | Brand: DFRobot

This compact digital anemometer measures air velocity for embedded electronics and intelligent control systems. It is built around the Posifa PAV3015D thermal sensing element, using temperature differences across a th...

SKU: DF-SEN0469 | Brand: DFRobot

This calibrated gas sensor measures ammonia concentration in the environment using an electrochemical probe. It supports three output modes — analogue, I2C and UART — so it can slot into a wide range of microcontrolle...

SKU: AF-4816 | Brand: Adafruit

The BMP390 from Bosch (also known as BMP390L) is a high-precision barometric pressure and temperature sensor, offering the best altitude accuracy in the Bosch pressure sensor lineup. With relative accuracy of ±3 Pasca...

SKU: AF-6174 | Brand: Adafruit

The Adafruit Sensirion SHT45 is the highest-accuracy sensor in the SHT4x family, delivering ±1.0% typical relative humidity accuracy and ±0.1 °C typical temperature accuracy. Featuring a PTFE membrane for protection a...

SKU: AF-5989 | Brand: Adafruit

The Adafruit HDC3021 is a high-precision I²C temperature and humidity sensor breakout featuring the TI HDC302x series chip. With typical humidity accuracy of ±0.5% RH (and just 0.19% long-term drift) and temperature a...

SKU: SF-SEN-13676 | Brand: SparkFun

The SparkFun BME280 Atmospheric Sensor Breakout measures barometric pressure, humidity, and temperature in a compact package. Whether you're building a weather station, home automation system, or indoor air quality mo...

SKU: SF-SEN-18377 | Brand: SparkFun

Need to keep track of the airflow in your data center or around your servers? How about making sure your HVAC and air control systems are functioning at full capacity? Well, the new SparkFun FS3000-1005 Air Velocity S...

SKU: SF-SEN-15805 | Brand: SparkFun

The SparkFun Qwiic TMP117 breakout is a high precision temperature sensor equipped with an I2C interface. It outputs temperature readings with high precision of ±0.1°C across the temperature range of -20°C to +50°Cs w...

SKU: PI-COM1701 | Brand: Pimoroni

The TMP36 is a low voltage, precision centigrade temperature sensor. It provides a voltage output that is linearly proportional to the Celsius temperature. It also doesn’t require any external calibration to provide t...