Humidity + Temperature Sensor (DHT 11) - P00094


Quick Overview:       18740
The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor.


Technical Specifications
Reviews (3758)

Uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old.

  • 3 to 5V power and I/O
  • 2.5mA max current use during conversion (while requesting data)
  • Good for 20-80% humidity readings with 5% accuracy
  • Good for 0-50C temperature readings 2C accuracy
  • No more than 1 Hz sampling rate (once every second)
Compared to the DHT22, this sensor is less precise, less accurate and works in a smaller range of temperature/humidity, but its smaller and less expensive

3758 Reviews for Humidity + Temperature Sensor (DHT 11)

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