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-2857 | Brand: Adafruit

The Adafruit Sensirion SHT31-D is a high-accuracy temperature and humidity sensor with a true I2C interface and PTFE filter for protection against dust and contaminants. Part of Sensirion's third-generation SHT sensor...

SKU: AF-3515 | 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...