DHT22 Temperature and Humidity Sensor

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DHT22 Temperature and Humidity Sensor
DH22 is a high performance temperature and humidity sensor capable of long distance signal transmission, ensuring high reliability and excellent stability.

SKU: CQY6859208567,WUM40175193124

Price: 4.78 $

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Overview

DHT22 is a high performance temperature and humidity sensor, ensuring high reliability and excellent stability. It uses a capacitive humidity sensor to measure the relative humidity and a negative temperature coefficient thermistor (NTC) to measure the temperature. Those sensing elements are pre-calibrated and the output is provided as a digital signal. Data can be read once every 2 seconds.

Specifications

  • Operating Voltage: 3.3 V to 5 V
  • Current: 2.5 mA
  • Humidity sensing range: 0 to 100% RH
  • Humidity measurement accuracy: 2 to 5% RH
  • Temperature measurement range: -40 °C to 80 °C
  • Temperature measurement accuracy: ±0.5 °C
  • Response time: 2 seconds
  • Dimensions: 27 x 59 x 13.5 mm

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