Digital Temperature Sensor - DS18B20, one wire

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DS18B20 Temperature Sensor Module is a Digital temperature sensor DS18B20 that will tell you temperature with 9 to 12-bit resolution! Uses only 1 wire to the Arduino or other microcontroller for communication. With the One Wire protocol, you can operate a large number of these sensors from one Arduino pin. The connection of this sensor to the Arduino via the 1-wire protocol is established. Therefore, several sensors can be connected only through one common wire to Arduino.

This is the latest DS18B20 1-Wire digital temperature sensor from Maxim IC. Reports °C with 9 to 12-bit precision, -55°C to 125°C (+/-0.5°C). Each sensor has a unique 64-Bit Serial number etched into it allows for a huge number of sensors to be used on one data bus.

This is a wonderful part that is the cornerstone of many data-logging and temperature control projects.


  • Unique 1-Wire interface requires only one port pin for communication
  • Each device has a unique 64-bit serial code stored in an onboard ROM
  • Multi-drop capability simplifies distributed temperature sensing applications
  • Requires no external components
  • Thermometer resolution is user-selectable from 9 to 12 bits
  • Converts temperature to the 12-bit digital word in 750ms (max.)
  • User-definable non-volatile (NV) alarm settings
  • Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)
  • Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system


  • Resolution adjustment range: 9-12
  • With mounting holes for easy installation, Aperture: 2.5
  • Temperature measuring range: -55 ~ +125 ℃
  • Temperature measurement accuracy: 0.5 ℃
  • Working voltage: DC 5V
  • Size: 28mm x 12mm x 10mm

Package included:
1 x DS18B20 digital temperature sensor module

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