The DHT22 temperature and humidity sensor is used in many projects involving smart home automation, weather monitoring, and horticulture management. It is a great sensor for getting started with Arduino and Raspberry Pi datalogging and data analysis using real-world data, i.e. temperature and humidity.

Included in the DHT22 Temperature Sensor Breakout Package:

• DHT22 temperature and humidity sensor

• Jumper wires

Features of the DHT22 Temperature Sensor:

• 3.3-6V Supply Voltage

• Operating ranges:

  • Relative Humidity: 0-100 %

  • Temperature -40 °C to 80 °C

• Sample Rate ~ 2 seconds

• Sensitivity:

  • Relative Humidity: ± 0.1 %

  • Temperature: ± 0.1 °C

• Accuracy (Drift and calibration errors):

  • Relative Humidity: ± 2-5 %

  • Temperature: ±0.5 °C

• Compatible with both Raspberry Pi and Arduino!

• Read the datasheet here

• See our Tutorials using the DHT22:

  • Arduino Thermistor Theory, Calibration, and Experiment

  • ATtiny85 Internet of Things Bluetooth Arduino Board

  • iPhone Datalogger with Arduino Using The iOS Bluetooth App BLExAR

  • Arduino I2C OLED Display - Temperature and Humidity Display (SSD1306)