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

AHT21B Temperature and humidity sensor Temperature -40 to +80°C; Humidity: 0-100%RH is equipped with a newly designed ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor component and a standard on-chip temperature sensor component. Its performance has been greatly improved and even beyond the reliability level of the previous generation of the sensor, which makes it more stable in harsh conditions. Each sensor had been rigorously calibrated and tested. Due to the improvement and miniaturization of the sensors, it is more cost-effective.

Features: 

• Relative humidity and temperature output
• Superior sensor performance, typical accuracy RH: ±3%, T: ±0.5℃
• 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
Scope of Work Temperature	-40~+80°C; Humidity: 0~100%RH
Accuracy Temperature	±0.5℃; Humidity: ±3%RH(25℃)
Hysteresis Temperature	±0.1℃ Humidity:±1%RH
Resolution Temperature	0.01℃ Humidity: 0.024%RH

Applications:

• It can be applied to HVAC, dehumidifier, testing and inspection equipment, consumer products, automobiles, automatic control, data loggers, weather stations, home appliances, humidity control, medical and other application fields which need to detect and control temperature and humidity.

Package Includes:

• 1 x Temperature and Humidity Sensor Model AHT21B

Related Links: 

• The sample program
• Product Design Guide
• Product Manual