AM2302 DHT22 Digital Temperature & Humidity Sensor

AM2302 digital temperature and humidity capacitance humidity module is a self contained calibrated digital signal output from the temperature and humidity sensor complex. It uses a dedicated digital modules and acquisition technique of temperature and humidity sensor technology to ensure that products with high reliability and excellent long-term stability. Sensor comprises a capacitive humidity sensing element and a high-precision temperature measurement devices, and with a high-performance 8-bit microcontroller connected. Therefore, the product has excellent quality, fast response, anti-interference ability, high cost and other advantages. Each sensor is extremely accurate calibration of humidity calibration chamber. Calibration coefficients stored in the form of a program of the microcontroller, the internal sensor in the process of the detection signal to call these calibration coefficients. Standard single bus interface, system integration becomes simpler and quicker. Ultra-small size, low power consumption, signal transmission distance up to 20 meters, making it the best choice for all kinds of applications and even the most demanding applications. 3 products for easy lead (single-bus interface) connection. Special packages can be provided according to user needs.

Second, the application

HVAC, dehumidifiers, testing and detection equipment, consumer goods, automotive, automatic control, data logging, home appliances, humidity regulator, medical, weather, and other relevant humidity detection control.

Third, the product highlights

Ultra-low power, transmission distance, fully automated calibration using capacitive humidity sensor, completely interchangeable, single-bus standard digital output, excellent long-term stability, high precision temperature measurement devices.

Fourth, the product parameters

Size: 40 * 23mm

Weight: 4g

Voltage: 5V

Port: digital two-way single bus

Temperature range: -40-80 C ± 0.5 C

Humidity range: 20-90% RH ± 2% RH

Platform: For Arduino, MCU