เซ็นเซอร์วัดความชื้นความแม่นยำสูง High Precision AM2302 DHT22 Digital Temperature & Humidity Sensor Module

product description :

First, the product overview
AM2302 humidity capacitance digital temperature and humidity module is a digital signal output has been calibrated temperature and humidity composite sensor. It uses a dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure that products with high reliability and excellent long-term stability. The sensor includes a capacitive sensing element and a high-precision temperature measurement element, and with a high-performance 8-bit microcontroller connected. Therefore, the product has excellent quality, ultra-fast response, anti-interference ability, cost-effective advantages. Each sensor is calibrated in an extremely accurate humidity calibration chamber. Calibration coefficients are stored in the form of a program in the microcontroller, the sensor within the detection signal processing to call these calibration coefficients. Standard single bus interface, making system integration easier and faster. Ultra-small size, low power consumption, signal transmission distance of up to 20 meters or more, making it all kinds of applications and even the most demanding applications the best choice. Products for the 3-pin (single bus interface) to facilitate connection. Special packaging can be provided according to user needs.
 
Second, the scope of application
HVAC, Humidifiers, Test and Inspection Equipment, Consumer Goods, Automobiles, Automatic Control, Data Loggers, Household Appliances, Humidity Regulators, Medical, Weather Stations and other related humidity detection controls.
 
Third, the product highlights
Ultra-low energy consumption, transmission distance, all automatic calibration, the use of capacitive humidity sensor, fully interchangeable, standard digital single-bus output, excellent long-term stability, high-precision temperature measurement components.
 
Fourth, the product parameters
Size: 40 * 23mm
Weight: 4g
Voltage: 5V
Ports: Digital bi-directional single-bus
Temperature range: -40-80 ℃ ± 0.5 ℃
Humidity range: 20-90% RH ± 2% RH
Platform: Arduino, Microcontroller