DHT22 Single Bus Digital Temperature and Humidity Module AAM2302B Sensor Probe AM2302 Adapter BoardItem NO.: DHT22

DHT22 Temperature and Humidity Module

Product Introduction:

The AM2302 digital temperature and humidity sensor is a temperature and humidity composite sensor with calibrated digital signal output. It applies dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure that the product has extremely high reliability and excellent long-term stability. The sensor includes a capacitive humidity sensing element and an NTC temperature measuring element, and is connected to a high-performance 8-bit microcontroller. Therefore, this product has the advantages of excellent quality, ultra fast response, strong anti-interference ability, and extremely high cost-effectiveness. Each AM2302 sensor is calibrated in an extremely accurate humidity calibration room. The calibration coefficients are stored in the OTP memory in the form of a program, and are called up internally by the sensor during the processing of the detection signal. Single wire serial interface makes system integration simple and fast. Its ultra small size, extremely low power consumption, and signal transmission distance of over 20 meters make it a great choice for various applications and even demanding applications. The product is packaged with 4-pin single row pins. Convenient connection, special packaging forms can be provided according to user needs.

Application Scope:

HVAC, dehumidifiers, testing and testing equipment, consumer goods, automobiles, automatic control, data recorders, household appliances, humidity regulators, medical, meteorological stations, and other related humidity detection and control.

Product Highlights:

Ultra low energy consumption, long transmission distance, fully automated calibration, using capacitive humidity sensors, fully interchangeable, standard digital single bus output, excellent long-term stability, and high-precision NTC.

Product Parameters:

1. Working voltage: 3V -5.5V

2. Sensor model: AM2302 temperature and humidity sensor

3. Signal output form: digital signal

4. Temperature measurement range: -40 ℃ -80 ℃

5. Measurement accuracy: 0.5 ℃

6. Humidity measurement range: 0-RH

7. Measurement accuracy: 2% RH

8. Resolution: 16 bits