Humidity Sensors

SKU: AF-4885 | Brand: Adafruit

The Adafruit Sensirion SHT40 is a high-accuracy temperature and humidity sensor featuring a true I2C interface for simple two-wire communication. Part of the fourth generation of Sensirion's acclaimed SHT sensor famil...

SKU: AF-5183 | Brand: Adafruit

The DHT20 is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the DHT22.This little sensor looks an awful lot like the popular DHT11/DHT22 temperature and humidity s...

SKU: AF-5190 | Brand: Adafruit

The Adafruit SCD-41 is a photoacoustic true CO2 sensor that directly measures carbon dioxide concentration in ambient air with a wide measurement range of 400 to 5,000 ppm. It also includes integrated temperature and ...

SKU: AF-4867 | Brand: Adafruit

The Adafruit SCD-30 is a true NDIR (Non-Dispersive Infrared) CO2 sensor that directly measures carbon dioxide concentration in ambient air, rather than estimating it from volatile organic compounds. With an integrated...

SKU: AF-5665 | 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. This version does not include a PTFE membr...

SKU: AF-5181 | Brand: Adafruit

The AM2301B is an affordable enclosed temperature and humidity sensor featuring an I2C interface — a modern upgrade over the classic DHT22/AM2302 sensors that required bit-bang timing protocols. Inside is the proven A...

SKU: AF-4516 | Brand: Adafruit

The Feather nRF52840 Sense takes the popular Feather nRF52840 Express and adds a suite of on-board environmental and motion sensors. It features Bluetooth Low Energy, native USB, CircuitPython and Arduino support, plu...

SKU: AF-5182 | Brand: Adafruit

The AM2315C is an enclosed I2C temperature and humidity sensor featuring the modern AHT20 sensor inside a rugged housing with mounting bracket. It offers the same convenient form factor as the original AM2315 but with...

SKU: AF-4832 | Brand: Adafruit

The Adafruit HTU31 is a third-generation I²C temperature and humidity sensor from TE, offering improved accuracy and useful extras over its predecessor, the HTU21D. With typical humidity accuracy of ±2% (at 20–100% RH...

SKU: AF-4566 | Brand: Adafruit

The Adafruit AHT20 is an affordable I2C temperature and humidity sensor from the makers of the popular DHT22. It delivers reliable readings with standard I2C communication, making it easy to use with any Arduino, Rasp...

SKU: AF-4535 | Brand: Adafruit

The Adafruit HTS221 is an affordable I²C/SPI temperature and humidity sensor breakout board from ST. It measures relative humidity from 0–100% RH with 3.5% accuracy (in the 20–80% range) and temperature from -40 to 12...

SKU: AF-5303 | Brand: Adafruit

The Adafruit ESP32-S2 Feather with BME280 is identical to the standard ESP32-S2 Feather but with an on-board BME280 temperature, humidity, and barometric pressure sensor at I2C address 0x77. This makes it an instant I...

SKU: AF-3721 | Brand: Adafruit

The AM2320 is a low-cost digital temperature and humidity sensor with an I2C interface — a simpler alternative to the classic DHT11/DHT22 sensors that require timing-critical bit-bang protocols. With standard I2C comm...

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: AF-1899 | Brand: Adafruit

The Adafruit HTU21D-F is an accurate I²C digital temperature and humidity sensor breakout board. With typical humidity accuracy of ±2% (optimised for 5–95% RH) and temperature accuracy of ±1°C across -30 to 90°C, it's...