Waterproof DS18B20 Digital temperature sensor + extras


Only 3 left in stock (can be backordered)


  • This is a pre-wired and waterproofed version of the DS18B20 sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C. Because they are digital, you don’t get any signal degradation even over long distances! These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems.


    Not for use in salt water or other corrosive environments.

    Cable specs:

    • Stainless steel tube 6mm diameter by 30mm long
    • Cable is 36″ long / 91cm, 4mm diameter
    • Contains DS18B20 temperature sensor
    • If your sensor has four wires – Red connects to 3-5V, Black connects to ground and White is data. The copper wire is soldered to the wire shielding
    • If your sensor has three wires – Red connects to 3-5V, Blue/Black connects to ground and Yellow/White is data

    DS18B20 Technical specs:

    • Usable temperature range: -55 to 125°C (-67°F to +257°F)
    • 9 to 12 bit selectable resolution
    • Uses 1-Wire interface- requires only one digital pin for communication
    • Unique 64 bit ID burned into chip
    • Multiple sensors can share one pin
    • ±0.5°C Accuracy from -10°C to +85°C
    • Temperature-limit alarm system
    • Query time is less than 750ms
    • Usable with 3.0V to 5.5V power/data

    Downloads: DS18B20 Datasheet

Additional information

Weight0.1 kg


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