Waterproof DS18B20 Digital Temperature Sensor for Arduino (IP68, -10°C to +85°C)

SKU:DFR0198 Brand:DFRobot Reward Points: 69
In Stock
Topic: Arduino
Quantity Based Price
  • 5-9$6.70
  • 10-49$6.20
  • 50+$5.50
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This is a waterproofed version of the DS18B20 Temperature 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! The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface so that only one wire (and ground) needs to be connected from a central microprocessor. Usable with 3.0-5.5V systems. 
Because each DS18B20 contains a unique silicon serial number, multiple DS18B20s can exist on the same 1-Wire bus. This allows for placing temperature sensors in many different places. Applications where this feature is useful include HVAC environmental controls, sensing temperatures inside buildings, equipment or machinery, and process monitoring and control.
With our plugable terminal, there is no soldering required to connect to our IO Expansion Shield


  • Usable with 3.0V to 5.5V power/data
  • ±0.5°C Accuracy from -10°C to +85°C
  • 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 the chip
  • Multiple sensors can share one pin
  • Temperature-limit alarm system
  • Query time is less than 750ms
  • 3 wires interface:
    • Type A
      • Red wire - VCC
      • Black wire - GND
      • Yellow wire - DATA
    • Type B (Recently there's a series of sensors using this pin mapping. Sorry for the inconvenience.)
      • Red wire  - VCC
      • Yellow wire - GND
      • Green wire - DATA
  • Stainless steel tube 6mm diameter by 35mm long
  • Cable diameter: 4mm (0.16)
  • Length: 95cm (37.4")


Project 1. DFRobot AutoEco System takes care of your garden.

By following this project it will help to grow a vegetable garden, and automate some other processes in our house along the way.
List of basic hardware to setup an AutoEco Sys:
  • 1. Romeo
  • 2. X-Board
  • 3. Light Sensor
  • 4.Gas Sensor
  • 5.Motion Sensor
  • 6. Tempreture&Humidity Sensor
  • 7. Waterproof temperature sensor
  • Project 2. Make a TDS Detector for Water Testing Experiment


    This project introduces to DIY a TDS meter with my analog TDS sensor, and use the meter to detect the TDS of tap water before and after filtration. Moreover, I can use it to do some interesting experiments. Let's have a go.


    Shipping List

    • Waterproof DS18B20 Digital temperature sensor x1




    Waterproof DS18B20 Digital Temperature Sensor for Arduino (IP68, -10°C to +85°C)

    In Stock
    • 5-9$6.70
    • 10-49$6.20
    • 50+$5.50