54 II B Data Logging Thermometer with Dual Input

Brand: Fluke Corporation

Fluke 54 II B dual input digital thermometer can log up to 500 points of data to internal memory.

Fast response and laboratory accuracy (0.05% + 0.3 °C).

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).
  • 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
  • Recall function allows logged data to be easily reviewed on the meter display
  • Infrared 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
  • 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, E, R, S, and N-type thermocouples
  • Readout in °C, °F, 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


Temperature Range

  • J-Type: -210° C to 1200° C
  • K-Type: -200° C to 1372° C
  • T-Type: -250° C to 400° C
  • E-Type: -150° C to 1000° C
  • N-Type: -200° C to 1300° C
  • R and S-Type: 0° C to 1767° C

Temperature Scale

  • ITS-90

Applicable Standards

  • NIST-175

Operating Temperature

  • -10° C to 50° C

Agency Approvals

  • CE
  • CSA
  • TÜV (Pending)


  • 3 AA batteries, typical 1000-hour life
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