Basic, ultra low-cost digital temperature and humidity sensor
Price3.50 EUR
10 - 49 pcs3.15 EUR
50 - 10000 pcs2.80 EUR
In stock

The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It 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.

SNS-DH11 is an implementation of the popular low-cost DHT11 temperature and humidity sensor. It comes with compatible set of short female-female wires with proper headers to make it even easier to connect to any exposed pins of your main development board.


  • Low cost
  • 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 0-50°C temperature readings ±2°C accuracy
  • Maximum 1 Hz sampling rate (once every second)
  • Body size 15.5mm x 12mm x 5.5mm
  • 3 pins with 0.1" spacing
  • Three female-female jumper wires in different colors included



  • Arduino library - remember to set the proper define for the sensor in the code (#define DHTTYPE DHT11); remember to set the digital pin that you used for the data (#define DHTPIN X)

Hardware connections:

SNS-DH11 has three pins:

  1. +       = Power input VCC pin (connect to a source of voltage in the 3V to 5V DC range)
  2. OUT = Data output pin (connect to a chosen digital input pin of your main board)
  3. -        = Digital ground VSS/GND pin (connect to GND of the main board)