The combined temperature and humidity sensor is intended for use outdoor and indoor spaces, and the sensor is connected through the 1Wire port.
This detector is an excellent sensor for measuring temperature and air humidity. This detector consists of two sensors, a capacitive humidity sensor and a thermal resistance. There is also a very simple chip inside that it convert the analog to digital and produces the digital output. The maximum current used during the conversion operation: 2.5 mA suitable for reading humidity 0-100% with an accuracy of 2-5% suitable for reading temperature from -40 to +80 degrees with an accuracy of ± 0.5 °C. DHT22 temperature and humidity sensor with calibrated digital signal output. Using the unique technique of digital signal collection and humidity measurement technology, the reliability and stability of this sensor is increasingly increased. The sensor elements are connected with a single 8-bit chip. Small size and low power consumption and long transmission distance of 20 meters enable this module to be used in all kinds of projects.
Ability to extend the cable length up to 20 meters
Use in internal and external environments such as server rooms and data centers and racks
Temperature measurement in the range of -40 degrees to +80 degrees
Measuring the relative humidity of the air as a percentage in the range of 0 to 100
It consists of a capacitive humidity sensor and a thermal resistance
It has fully calibrated output and high accuracy
Used in various industries such as various ventilation systems and personal projects
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Power Supply
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5V DC
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Dimensions
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27 x 59 x 13 mm
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Usage
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Educational, industrial, general
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Working Voltage
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33 volts to 6 volts
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Output Signal
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Digital Signal via 1-wire bus
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Sensor Element
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Polymer Capacitors
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Digital Interface
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1 Wire
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Accuracy
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Humidity 2%, Temperature 0.5 degrees
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Maximum Current Used During Conversion Operation
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2.5 mA
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Size
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7.7 x 25 x 15.1 mm
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Sampling rate
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0.5 Hz (once every two seconds)
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Operating Range
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Humidity 0-100% RH, Temperatute -40°C ~ 80°C
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Resolution or Sensitivity
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Humidity 0.1% RH, Temperature 0.1°C
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Repeatability
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Humidity ±1% RH, Temperature ±0.2°C
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Humidity Hysteresis
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±0.3% RH
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Long-term Stability
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±0.5% RH year
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Interchangeability
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Fully Interchangeable
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