AHT21B Datasheet - ASAIR

AHT21B Humidity and Temperature Sensor

The AHT21B is a kind of sensor of humidity and temperature with digital I²C output. 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 appli.

Data Sheet AHT21B Humidity and Temperature Module 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 Product Summary AHT21B is equipped with a newly designed ASIC dedicated chip, an improved MEMS semiconductor cap.

AHT21B-ASAIR.pdf