SHT2X - Temperature & Humidity Sensor
The SHT21 is a combination Temperature and Humidity sensor. It can report both the temperature and humidity data at the same time. The temperature reading can be either in Celsius (°C) or Fahrenheit (°F), while the humidity reading is in relative humidity (%RH).
The SHT21 uses an I2C interface to communicate. It utilises a capacitive-type humidity sensor and a band-gap temperature sensor. These sensors can be used in projects where environmental data is required.
For detailed specifications, find the datasheet at: https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT21_Datasheet.pdf