It is equipped with a newly - designed ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity - sensing element, and a standard temperature - sensing element, featuring excellent long - term stability and high reliability.
With high - performance, the typical accuracy is ±2%RH for humidity and ±0.3℃ for temperature at 20 - 80%RH and 20 - 60℃.
It has a wide - voltage power supply range, supporting DC 2.2V to 5.5V, and the sleep power consumption is only 0.8μW, which is suitable for battery - powered devices.
Adopting the standard I2C communication protocol, it is easy to connect to micro - controllers such as Arduino, and is suitable for multi - device parallel scenarios.
Each sensor is strictly calibrated and tested in a highly accurate humidity calibration room before leaving the factory to ensure product quality.

Application Scenarios:

Widely used in consumer electronics, medical, automotive, industrial, meteorological and other fields.
Can be applied to home appliances such as HVAC, dehumidifiers and refrigerators, as well as testing and detection equipment and other related temperature and humidity detection and control products.

Supply Voltage	2.2V - 5.5V DC
Humidity Measuring Range	0 - 100%RH
Temperature Measuring Range	- 40℃ - 80℃
Humidity Resolution	0.024%RH
Temperature Resolution	0.01℃
Humidity Accuracy	±2%RH (at 25℃)
Temperature Accuracy	±0.3℃ (at 25℃, 3.3V supply voltage, excluding hysteresis and non - linearity)
Humidity Repeatability	±0.1%RH
Temperature Repeatability	±0.1℃
Humidity Hysteresis	±1%RH
Temperature Hysteresis	±0.1℃
Humidity Response Time	≤8s (reach 63% response at 25℃, 1m/s air flow)
Temperature Response Time	≤30s (reach 63% response)
Humidity Long - term Drift	<1%RH/yr
Temperature Long - term Drift	<0.1℃/yr
Power Consumption (Sleep)	0.8μW
Power Consumption (Measurement)	3.2mW
Output Signal	I2C
Default I2C Address	0x38
Pin 1 Definition	VDD, Power supply (2.2V - 5.5V), Red
Pin 2 Definition	SCL, Serial clock, bidirectional port, White
Pin 3 Definition	SDA, Serial data, bidirectional port, Yellow

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