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1-Wire, iButton and other Sensing Solutions

Welcome to Fuchs Elektronik, supplier of 1-Wire, iButton and other sensing/control products. Please contact us if you prefer to place your order by fax or email.

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1-Wire and iButton

The 1-Wire and iButton products combine the single-contact 1-Wire serial interface with nonvolatile memory, mixed-signal, and secure authentication functions into products that serve a broad range of applications. 1-Wire products are manufactured in traditional IC packaging. iButton products are available in a unique, robust stainless steel package.




The MFE-TEMP-SI screw-in sensor is designed to measure the temperature at a max. pressure of 40 bar in gasiform as well as liquid medium. The stainless steel screw-in immersion sleeve can be directly mounted by G1/2 thread.

The sensor is directly compatible with all general purpose 1-Wire host adapters. For complete documentation on the embedded DS18B20 sensor, please refer to the manufacturer's spec sheet.

  • Measure the temperature in ducts or pipes
  • Based on the DS18B20 1-Wire temperature sensor
  • High accuracy and resolution
  • Easy to install by G1/2 thread
  • Uses 1-Wire communication protocol
  • Compatible with all general purpose 1-Wire host adapters
  • Made in Germany

1-Wire ConnectionScrew-Down
CableSilicone 1.0 m
Installation length100 mm
Max. pressure40 bar
Temperature Range-50 to 125°C
Accuracy (-10 to +85°C)±0.5°C
Accuracy (-50 bis 125°C)±2°C
Resolution0.5 to 0.0625°C
Supply Voltage3.0 to 5.5 Volts
Active Current1 MilliAmp
Protection RatingIP68 (EN 60529)

Green1-Wire data
White1-Wire return
BrownExt. Power (Vdd)

Parasitic Mode
For parasitic mode, the Vdd line must be tied to ground. External power is recommended for faster operation.

Examples of Accessories

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14.90 €

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