DHT22 Temperature and Humidity Sensor Module is one that contains the compound has been calibrated digital signal output of the temperature and humidity sensors. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability.
The sensor includes a capacitive sensor for wet components and a high-precision temperature measurement devices and connected with a high-performance 8-bit microcontroller. The product has excellent quality with fast response but strong in anti-jamming capability. It uses an Standard single wire interface to system integration, hence its in Small size and compact formfactor with low power consumption.
DHT22 has higher precision and can replace the expensive imported SHT10 temperature and humidity sensors in competition.
It can measure the environment temperature and humidity because of the high reliability and good stability.
Note that the DHT22 digital temperature and humidity sensor is designed for analog sensor interfaces but will be used as the digital interface which will not occupy the original digital port of the Arduino. The lines of the sensor which can transform the analog function to digital that can be use on digital port.
Features of DHT22 Temperature and Humidity Sensor Module
- High precision
- Capacitive type
- Full range temperature compensated
- Relative humidity and temperature measurement
- Calibrated digital signal
- Outstanding long-term stability
- Extra components not needed
- Long transmission distance
- Low power consumption
- 4 pins packaged and fully interchangeable
Specifications of DHT22 Temperature and Humidity Sensor Module
|Operating Voltage||3 ~ 5.5V|
|Humidity measurement precision||±2%RH|
|Temperature measurement precision||±0.5°C|