Adafruit AHT20 Temperature & Humidity Sensor

Adafruit AHT20 Temperature & Humidity Sensor uses standard I2C and is accessible with Arduino or Linux/Raspberry Pi board. This sensor offers an accuracy of ±2% relative humidity and operates at -40°C to 85°C temperature range. The AHT20 sensor is used in breakout boards with required circuitry and comes with STEMMA QT JST SH connectors that are used without a solder.


  • Used with 3.3V or 5V power/logic
  • I2C address 0x38
  • -40°C to 85°C temperature range (±0.3°C accuracy)
  • 0-100RH% relative humidity range (±2% accuracy)
Published: 2020-08-07 | Updated: 2022-03-11