AM2301B High-Performance Digital Output Temperature and Humidity Sensor Is Used in Dehumidifiers.
 
AM2301B humidity and temperature sensor is a high-performance digital output device that uses the I²C interface. It supports a wide voltage range (2.2 - 5.5VDC) and has a low power consumption design. Here are its key parameters and usage descriptions:
Core parameters
‌Humidity measurement range‌: 0 - 100%RH (relative humidity), normal operating range is 0 - 80%RH. Values outside this range may result in deviations.
Temperature measurement range: -40°C to +80°C, accuracy ±0.3°C
Resolution: Humidity 0.01% RH, Temperature 0.01℃
Power supply voltage: Supports a wide voltage range of 2.2 - 5.5VDC
Power Consumption: The current in sleep mode is as low as 0.8 μA, while the current in measurement mode is approximately 3.2 mA.
 
Typical applications
‌Smart home‌: Used for temperature and humidity detection and control of household appliances such as air conditioners and dehumidifiers.
Industry and Meteorology Field: Suitable for testing equipment, meteorological stations, and scenarios requiring high-precision environmental monitoring.
Automobile Applications: Vehicle Air Conditioning System and Humidity Regulation
Medical equipment: Monitoring of room temperature and humidity, monitoring of drug storage environment

Characteristics
Stability: Long-term usage results in a drift of less than 0.1% RH per year.
Response speed: Achieving a first-order response of 63% takes approximately 10ms.
Anti-interference capability: Special structural design enhances signal stability.