AM2305 Digital Humidity & Temperature

The AM2305 is a high-precision digital temperature and humidity sensor designed for reliable environmental monitoring. It integrates a capacitive humidity sensing element and a temperature sensor with an internal microcontroller that provides calibrated digital output. The sensor communicates via a single-wire digital interface, making it easy to integrate with microcontrollers such as Arduino, ESP32, and Raspberry Pi. It is widely used in industrial and consumer applications due to its stability, accuracy, and long-distance signal transmission capability.

Technical Specifications:

• Operating Voltage: 3.3V – 5.5V DC
  
• Humidity Measurement Range: 0 – 99.9% RH
  
• Temperature Range: -40°C to +80°C
  
• Humidity Accuracy: ±2% to ±3% RH
  
• Temperature Accuracy: ±0.3°C
  
• Resolution: 0.1°C / 0.1% RH
  
• Output Signal: Digital (single-wire interface)
  
• Response Time: ~2 seconds
  
• Signal Transmission Distance: Up to ~20 meters

Features:

• Calibrated digital output with high accuracy
  
• Wide operating voltage range for flexible usage
  
• Excellent long-term stability and reliability
  
• Strong anti-interference capability
  
• Low power consumption design
  
• Long-distance signal transmission support
  
• Compact probe design with protective casing
  
• Easy interfacing using single-wire communication

Applications:

• HVAC systems and climate control
  
• Weather stations and environmental monitoring
  
• Industrial automation and process control
  
• Home automation systems
  
• Agriculture and greenhouse monitoring
  
• Data logging and test equipment
  
• Medical and laboratory environments
  
• Consumer electronics and smart devices