AHT21B Temperature and Humidity Sensor - Temperature: -40 to +80°C; Humidity: 0-100%RH

The AHT21B Temperature and Humidity Sensor is designed with a newly developed ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor component, and a standard on-chip temperature sensor component. This sensor offers improved performance and reliability compared to previous generations, making it more stable in harsh conditions. Each sensor is rigorously calibrated and tested for accuracy.

  Features:  

• Relative humidity and temperature output
• Superior sensor performance, typical accuracy RH: ±3%, T: ±0.5„ƒ
• Fully calibrated and processed digital output, I²C protocol
• Wide voltage support 2.2 to 5.5V DC
• Excellent long-term stability
• Fast-response and anti-interference capability
• Output signal I²C signal

  Specifications:  

• Operating Voltage: 2.2 – 5.5V
• Operating Temperature Range: -40~+80°C
• Humidity Range: 0~100%RH
• Temperature Accuracy: ±0.5„ƒ
• Humidity Accuracy: ±3%RH (at 25„ƒ)
• Temperature Hysteresis: ±0.1„ƒ
• Humidity Hysteresis: ±1%RH
• Temperature Resolution: 0.01„ƒ
• Humidity Resolution: 0.024%RH

  Applications: 

The AHT21B sensor can be applied in various fields such as HVAC, dehumidifiers, testing and inspection equipment, consumer products, automobiles, automatic control systems, data loggers, weather stations, home appliances, humidity control systems, medical devices, and other applications requiring temperature and humidity detection and control.

  Package Includes:  

• 1 x AHT21B Temperature and Humidity Sensor