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Fluke 50D Contact Thermometer

The 50D (dual input) contact thermometer offers simple functionality at a great price. This thermometer work with either K- or J-type thermocouples and offer 0.1 ºC (0.2 ºF) resolution over the entire measurement range.

This product is discontinued or reclassified

Fluke 50D Contact Thermometer
  • Laboratory accuracy. Wherever you go

    The Fluke 50 Series II contact thermometers offer fast response and laboratory accuracy (0.05% + 0.3°C) in a rugged, handheld test tool. Take contact temperature for checking motors, insulation, breakers, pipes, corroded connections, liquids, and wires with industrial standard J, K, T, E, N, R, and S type thermocouple (temperature sensors).

  • Product Highlights

    Fluke 50 Series II products features:

    • Relative time clock on MIN, MAX, and AVG provides a time reference for major events
    • Electronic Offset function allows compensation of thermocouple errors to maximize overall accuracy
    • Measures J, K, T, and E-types of thermocouples
    • Readout in ºC, ºF, or Kelvin (K)
    • Splash and dust resistant case protected by impact absorbing holster
    • User-friendly front panel is easy to set up and operate
    • Sleep mode increases battery life; typical 1000-hour battery life
    • Battery door allows easy battery replacement without breaking the calibration seal
    • Optional ToolPak accessory allows the thermometer to hang from any metal object (with the rare earth magnet) or secure around a pipe (with hook-and-loop straps) for hands-free operation
    • 3 year warranty

    The Fluke 53 II B and 54 II B include all the features listed above plus:

    • Large backlit dual display shows any combination of T1, T2 (52 and 54 only), T1-T2 (52 and 54 only), plus MIN, MAX, or AVG
    • Additional thermocouple types R, S, and N (for a total of 7 different types)
    • Recall function allows logged data to be easily reviewed on the meter display
    • USB communication port allows data to be exported to optional FlukeView Forms® Temperature PC software for further analysis and graphing
    • Data Logging up to 500 points of data with user adjustable recording interval
  • Temperature Range: K-type  -200 ºC to 1370 ºC
    Range: J-type  -200 ºC to 760 ºC
    Accuracy: K-type  ± [0.1% + 0.7 ºC]
    Accuracy: J-type  ± [0.1% + 0.8 ºC]
    Mechanical & General Specifications
    Size (HxWxD)  166 x 75 x 28 mm
    Weight  280 g
    Warranty  1 year
    Battery life  800 hours typical, 9V
    • Model
      Model Name Description  
      Fluke 50D Fluke 50D Contact Thermometer
      Contact Thermometer


      • C70Y Holster
      • Two K-type bead probes
    • Manuals
      50S & 50D Statement of Memory Volatility Download
      51, 52, 50S and 50D Statement of Memory Volatility Download