High Precision AM2302 DHT22 Digital Temperature & Humidity Sensor Module
product parameters
Size: 40*23mm
Weight: 4g
Voltage: 5V
Port: digital bidirectional single bus
Temperature range: -40-80℃ ±0.5℃
Humidity range: 20-90%RH ±2%RH
Product overview
AM2302 Humidity Capacitor Digital Temperature and Humidity Module is a temperature and humidity composite sensor with calibrated digital signal output. It uses 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 a high-precision temperature measuring element, and is connected with a high-performance 8-bit single-chip microcomputer. Therefore, the product has the advantages of excellent quality, ultra-fast response, strong anti-interference ability, and high cost performance. Each sensor is calibrated in an extremely accurate humidity calibration room. The calibration coefficients are stored in the single-chip microcomputer in the form of a program, and these calibration coefficients must be called during the processing of the detection signal inside the sensor. Standard single bus interface makes system integration easy and quick. Ultra-small size, extremely low power consumption, and signal transmission distance of up to 20 meters or more, making it the best choice for various applications and even the most demanding applications. The product is easy to connect with 3 leads (single bus interface). Special packaging forms can be provided according to user needs.
Second, the scope of application
HVAC, dehumidifiers, testing and inspection equipment, consumer products, automobiles, automatic controls, data loggers, home appliances, humidity regulators, medical care, weather stations, and other related humidity detection and control.
Product highlights
Ultra-low energy consumption, long transmission distance, full automatic calibration, use of capacitive humidity sensor, complete interchangeability, standard digital single bus output, excellent long-term stability, use of high-precision temperature measurement components.
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