DHT11 Temperature and Humidity Sensor

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£2.99 £2.49
Low-cost digital temperature and humidity sensor

The DHT11 is a simple low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, providing a digital output, updated approximately every 2 seconds. It's fairly simple to use, but requires careful timing to acquire data.

  • 3 to 5V power and I/O
  • 2.5mA max current use during conversion (while requesting data)
  • 20-80% humidity readings with 5% accuracy
  • 0-50°C temperature readings ±2°C accuracy
  • No more than 1 Hz sampling rate (once every second)
  • Body size 15.5mm x 12mm x 5.5mm
  • Breadboard/Stripboard friendly 2.54mm (0.1") pin spacing
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