Temperature Sensor - High Temperature, Waterproof (DS18B20)

This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. 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. Power for reading, writing, and performing temperature conversions can be derived from the data line itself with no need for an external power source.

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.

Note: The pinout for this sensor is as follows: RED=Vcc BLACK=GND WHITE=SIG

SEN-11050 & SEN-18367 use the exact same sensor, the difference is the cable on SEN-18367 is rated for the full 125°C where only the sensor is rated that for on SEN-11050.

  • 3.0-5.5V input voltage
  • -55°C to +125°C temperature range
  • ±0.5°C accuracy from -10°C to +85°C
  • Waterproof
  • 1 Wire interface
  • Probe is 7mm in diameter and roughly 26mm long. Overall length (including wire) is 6 feet.
  • Thermometer resolution is programmable from 9 to 12 bits.
  • Electrical performance: no flicker or breakdown within AC 1200V/1S ,within DC 500V the insulation resistance shall be greater than 100MΩ

Temperature Sensor - High Temperature, Waterproof (DS18B20) Product Help and Resources

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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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Looking for answers to technical questions?

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  • GordieGii / about 3 years ago * / 1

    What is the difference between this and the SEN-11050? The specs seem the same. This is called High Temperature but they both have a max of 125C. Can this tolerate pressure? I want to put it in a water pipe. (I don't expect more than 75 PSi)

    • CF / about 3 years ago / 1

      The sensor itself is the same in both products, the difference is the cable on this one is rated for the full 125C where only the sensor is rated for that on SEN-11050.

      I don't think these will hold up under water pressure, if you're going to subject it to 75PSI you might need to give it a good covering of silicone first just to be sure water doesn't get in.

      • GordieGii / about 3 years ago / 1

        Thanks. Would you happen to know what temperature the other cable is rated for?

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