DHT22 Temperature and Humidity Sensor

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Product Code: 91454
Availability: SOLD OUT Views: 23263
Product Description
  • 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, up to 100 meters
  • Low power consumption
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DHT22 Temperature and Humidity Sensor info

DHT22 Temperature and Humidity Sensor is an output calibrated digital signal. It applies exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability. Its sensing element is connected with 8-bit single-chip computer.

Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of program in OTP memory. When the sensor is detecting, it will cite coefficient from memory.

 

DHT22 Temperature and Humidity Sensor - General Specifications

  • 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, up to 100 meters
  • Low power consumption

 

DHT22 Temperature and Humidity Sensor - Technical Specifications

  • Power supply: 3.3-6V DC
  • Output signal: digital signal via single-bus
  • Sensing element: Polymer capacitor
  • Operating range: Humidity: 0-100%RH; Temperature: -40~80Celsius
  • Accuracy: Humidity: +-2%RH(Max +-5%RH); Temperature <+-0.5Celsius
  • Resolution or sensitivity: Humidity: 0.1%RH; Temperature 0.1Celsius
  • Repeatability: Humidity: +-1%RH; Temperature +-0.2Celsius
  • Humidity hysteresis: +-0.3%RH
  • Long-term Stability: +-0.5%RH/year
  • Sensing period: Average 2s

 

Videos

 

Documents

DHT22 Datasheet

 

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