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Temperature Probe DS18B20 & Arduino Compatible Adapter

by Velleman

This digital thermometer provides 9 to 12-bit (configurable) temperature readings, and comes with a handy three pin adaptor for connecting it to an Arduino or breadboard.


  • DS18B20 specs: unique 1-wire interface requires only one port pin for communication
  • multidrop capability simplifies distributed temperature sensing applications
  • requires no external components
  • can be powered from data line, power supply range is 3.0 V to 5.5 V
  • zero standby power required
  • measures temperatures from -55°C to +125°C (Fahrenheit equivalent -67°F to +257°F)
  • ± 0.5°C accuracy from -10°C to +85°C
  • thermometer resolution is programmable from 9 to 12 bits
  • converts 12-bit temperature to digital word in 750 ms (max.)
  • user-definable, non-volatile temperature alarm settings
  • alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)
  • 3-wire adaptor for Arduino included


  • dimensions stainless steel tube:
    • diameter: 6 mm
    • length: 30 mm
  • dimensions cable:
    • diameter: 4 mm
    • length: 36" (91 cm)
  • connections:
    • red: 3-5 V
    • black: ground
    • yellow: data


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