DHT21/AM2301 Temperature & Humidity Sensor

DHT21/AM2301 Temperature & Humidity Sensor

R183.65

DHT21/AM2301 Temperature & Humidity boasts a high temperature accuracy of ±0.3℃ better than DHT11 or DHT22 and relative humidity accuracy of +/- 3%.

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Description

The AM2301 or also known as DHT21 digital temperature sensor is one of the common from the range of DHT Temperature & Humidity sensors and boasts a relatively high temperature measurement accuracy of ±0.3℃ better compared to the DHT11 or DHT22 and with a relative humidity accuracy of +/- 3%. It has only 3 wires, including power and ground, meaning only one digital pin is required to interface it to a microcontroller. For Arduino development platforms the sensor is very well supported by the DHT library available from the Arduino Playground website.

Applications

  • HVAC,
  • Dehumidifier,
  • Consumer goods,
  • Automatic control,
  • Data loggers,
  • Humidity regulator,
  • Weather stations, and
  • other humidity measurement and control.
  • DHT21 is the former name, new name is AM2301
  • Power supply: 3.3-5V DC
  • Output signal: digital signal via single-bus
  • Sensing element: Polymer humidity capacitor
  • Measuring range: humidity 0-100%RH; Temperature -40~80Celsius
  • Accuracy: humidity +-3%RH(Max +-5%RH); Temperature <+-1Celsius
  • 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
  • Dimensions size 59*27*13.5mm

Download Datasheet

Additional information

Weight15 g
Brand

Aosong

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