DHT-22 Temperature and Humidity Sensor

Description

The DHT22 (also known as AM2302) is a high-precision digital sensor for measuring temperature and humidity. It is ideal for weather stations, environmental monitoring, smart home systems, and IoT projects.

Key Features:

• Temperature Range: -40°C to +80°C (±0.5°C accuracy)
  
• Humidity Range: 0% to 100% RH (±2–5% accuracy)
  
• Operating Voltage: 3.3V to 6V
  
• Signal Output: Digital (single-wire interface)
  
• Sampling Rate: 1 reading every 2 seconds
  
• Long transmission distance: Up to 20 meters
  
• Low power consumption
  
• Pre-calibrated and easy to use
  

Advantages Over DHT11:

• Higher accuracy
  
• Wider range for both temperature and humidity
  
• Better for industrial and professional use
  

Applications:

• Weather monitoring systems
  
• Indoor air quality monitoring
  
• Smart agriculture
  
• HVAC systems
  
• IoT and embedded systems
  

What’s Included:

• 1 x DHT22 Sensor Module (with PCB or bare sensor, depending on model)