HR202 Resistive Humidity Sensor

Technical Specifications

The HR202 Resistive Humidity Sensor is a highly reliable device for monitoring temperature and humidity levels. Its technical specifications are as follows:

• Temperature Measurement:
  • Accuracy: ±0.5°C
  • Measurement Range: -40 to 80°C
  • Resolution: 0.1°C
• Humidity Measurement:
  • Accuracy: ±2-5% RH (accuracy decreases with increasing humidity)
  • Measurement Range: 0 to 100% RH
  • Resolution: 0.1% RH
• Power Supply: 3.3V to 6V DC
• Output: Digital signal (utilizes a single-wire communication protocol)
• Dimensions: Standard sensor dimensions, typically around 15mm x 12mm x 5.5mm
• Response Time: Typically less than 2 seconds

Key Features

The HR202 sensor is known for its accuracy and versatility. Here are some of its key features:

• High accuracy in temperature and humidity measurements, with ±0.5°C for temperature and ±2-5% RH for humidity
• Wide temperature measurement range from -40 to 80°C
• Humidity measurement capability from 0% to 100% RH, with slightly reduced accuracy at higher humidity levels
• Operates within a voltage range of 3.3V to 6V, making it suitable for various applications
• Quick response time, providing measurements typically in less than 2 seconds

Applications

The HR202 sensor, also known as DHT22, is widely used in various fields such as weather monitoring, HVAC systems, industrial automation, and consumer electronics. It is known for its reliable performance, moderate accuracy, and low power consumption, making it suitable for a broad range of applications.If you plan to integrate this sensor with an Arduino or other microcontroller, there are several libraries and example codes available to simplify the process.Click here to access the datasheet for more detailed information.