AM2302 Digital Temperature and Humidity Sensor (wired DHT22)

The AM2302 is a wired version of the DTH22, enclosed in a large plastic body. It is a basic, low-cost digital temperature and humidity sensor that uses a capacitive humidity sensor and a thermistor to measure the surrounding air. Here are its features and specifications:

  Features:  

• Low cost
• High precision
• Full-range temperature compensation
• Relative humidity and temperature measurement
• Calibrated digital signal
• Long-term stability
• Long transmission distance, up to 100 meters
• Low power consumption
• 3 pins packaged and fully interchangeable
• No extra components needed
• More precise and accurate compared to DTH11

  Specifications:  

• Model: AM2302
• Supply Voltage: 3.3 to 5V
• Current: 5mA
• Humidity Range: 0-100%
• Humidity Accuracy: 2-5%
• Temperature Range: -40 to 80°C
• Temperature Accuracy: 0.5°C
• Sampling Rate: 0.5 Hz (Once every 2 seconds)
• Wire Length: 3 wires, 23cm long (9")
• Dimensions (LxWxH): 27 x 59 x 13.5mm

  Package Includes:  

• 1 x AM2302 Digital Temperature and Humidity Sensor

Note: The sensor requires careful timing to grab data and can only provide new data once every 2 seconds. Each sensor must have its own data pin if you want to use multiple sensors.