Product Descriptions

As a new generation of temperature and humidity sensors, AHT21 sets a new standard in terms of size and performance: a two-row flat pin less 

SMD package suitable for reflow soldering, bottom face 3x3mm, height 0.8mm.The sensor outputs calibrated digital signals in standard IIC 

format.

AHT21 is equipped with a newly designed ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor element and a 

standard on-chip temperature sensor element. Its performance has been greatly improved or even exceeded the reliability level of the previous 

generation of sensors. A generation of temperature and humidity sensors have been improved to make their performance more stable in harsh 

environments.

Each sensor is calibrated and tested, and the product lot number is printed on the surface of the product. Due to improvements and 

miniaturization of the sensor, it is more cost-effective, and ultimately all devices will benefit from cutting-edge energy-saving operation modes.

Product Applications

HVAC, dehumidifier, testing and inspection equipment, consumer products, automobiles, automatic control, data loggers, weather stations, 

home appliances, humidity control, medical and other related temperature and humidity detection and control.

Product Features

Humidity and Temperature Sensor

•Full calibration

•Digital output, I2C interface

•Excellent long-term stability

•SMD package suitable for reflow soldering

•Quick response and strong anti-jamming capability

Product Images

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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