Environmental (temperature, humidity, air quality)

This waterproof SMD DS18B20 temperature sensor provides 9-bits to 12-bit (configurable) temperature measurement and communicates over a 1-Wire bus ...

PTC stands for “Positive Temperature Coefficient”. This thermostatic ceramic PTC heating element can be used to automatically maintain a constant t...

This is a 3.3/5V compatible MEMS gas concentration sensor from DFRobot.  This sensor supports the detection of various gas concentrations like CO, ...

PTC stands for “Positive Temperature Coefficient”. This thermostatic ceramic PTC heating element can be used to automatically maintain a constant t...

This Digital Temperature & Humidity Sensor Breakout Board is based upon the Sensirion SHT30 sensor IC. Thanks to Sensirion’s CMOSens® technolog...

This Digital Temperature & Humidity Sensor Breakout Board is based upon the Sensirion SHT35 sensor IC. Thanks to Sensirion’s CMOSens® technolog...

This is a Arduino compatible pressure sensor module with a measuring range of 15-700kPa, which supports I2C digital output and can be calibrated ac...

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

This Digital Temperature & Humidity Sensor Breakout Board is based upon the Sensirion SHT31-F sensor IC. Thanks to Sensirion’s CMOSens® technol...

The AM2301B is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the AM2302. In fact, this enclosed senso...

Here is a jolly cute Bluetooth-enabled sensor-and-digital-clock to monitor your room's temperature and humidity. Only 110mm x 55mm, we dig its medi...

It's rare to see breadboard friendly I2C sensors, but this TO-220 package with 5 pins is, in fact, such a thing! It's a basic temperature sensor, n...

Take a deep breath in...now slowly breathe out. Mmm isn't it wonderful? All that air around us, which we bring into our lungs, extracts oxygen from...

Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. The Adafruit MCP9601 I2C Thermocouple Breakout (a....

The AM2315C is a nice, enclosed temperature and humidity sensor from the same folks that brought us the AM2315. In fact, this enclosed sensor looks...

Take a deep breath in...now slowly breathe out. Mmm isn't it wonderful? All that air around us, which we bring into our lungs, extracts oxygen from...

The MCP9808 digital temperature sensor is one of the more accurate/precise we've ever seen, with a typical accuracy of ±0.25°C over the sensor's -4...

Humidity is the concentration of water vapor (water when it's a gas) in the air. Some places have more and make you feel soggy and hot like you're ...

The HTU31-D is the third generation of temperature-humidity sensors from TE - and a great follow-up to the popular HTU21-D sensor. Like the HTU21, ...

The long-awaited BME688 from Bosch gives you all the environmental sensing you want in one small package. This little sensor contains temperature, ...

This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provi...

The SparkFun SGP40 Air Quality Sensor provides a measurement of the quality of the air in your room or house. The SGP40 is based on Sensirion's CMO...

The SCD41 from Sensirion is a high quality Photoacoustic based CO₂ sensor capable of detecting 0 to 40000ppm with high accuracy over 400-5000ppm ±(...

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 functioni...