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Product Descriptions

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

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

format. AHT21 is equipped with a newly designed ASIC dedicated chip, an improved MEMS semiconductor capacitivehumiditysensor element 

and a standard on-chip temperature sensor element. Its performance has been greatly improvedor evenexceeded the reliability level of the 

previous generation of sensors. A generation of temperature and humidity sensorshave 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. 

Duetoimprovements and miniaturization of the sensor, it is more cost-effective, and ultimately all devices will benefit fromcutting-edge energy-

saving operation modes.

Product Feature

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  Application

The AHT21 can be widely used in consumer electronics, medical, automotive, industrial, meteorological and other fields, such as: HVAC, 

dehumidifiers and refrigerators and other home appliances, testingandtesting equipment and other related temperature and humidity 

detection and control products.

Product Images

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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