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  • FLUKE 51 II Single Input Digital Thermometer

    # 51 II

    • Measure temperature levels from a single thermocouple
    • Compatible with type J; K; T; E; N; R and S type thermocouples
    • MIN/MAX/AVG temperature calculation

    The Fluke 51 II single input best digital thermometer delivers fast response with laboratory accuracy (0.05% + 0.3°C). You can use the 51 II to measure contact temperature on motors, insulation, breakers, pipes, corroded connections, liquids, and wires with industrial standard J, K, T, or E-type thermocouple temperature sensors. The user friendly-front panel and large, backlit display make it easy to view results. And the sleep mode feature preserves battery life to give you a typical thousand hours of operation.


    Key features
    • Single Input digital thermometer for lab, QA, process calibration, food safety and HVAC
    • Measures J, K, T, and E-type thermocouples
    • Presents results in °C, °F, or Kelvin (K) on a large backlit display
    • Includes a relative time clock on MIN, MAX, and AVG to provide a time reference for major events


    Other useful features:

    • Easy-to-access battery door that allows replacing the battery without breaking the calibration seal
    • Comes with splash- and dust-resistant case protected by an impact-absorbing holster and a three-year warranty
    • Powered by three, standard AA batteries -30-
    • Includes an electronic offset function that compensates for thermocouple errors to maximize overall accuracy
    • Handles temperatures up to 900°C (1600°F)
    • Provides a user-friendly front panel that is easy to set up and operate
    • Offers sleep mode to increase battery life; 1000-hour battery life typical
    • Offers optional ToolPak accessory to hang the thermometer from any metal object (with the rare earth magnet) or secure around a pipe (with hook-and-loop straps) for hands-free operation
    Temperature accuracyAbove -100°CJ, K, T, E, and N-type: ±[0.05% + 0.3°C]1
    R and S-type: ±[0.05% + 0.4°C]1
    Below -100°CJ, K, E, and N-types: ±[0.20% + 0.3°C]1
    T-type: ±[0.50% + 0.3°C]
    TemperatureJ-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°C1
    R and S-type0°C to 1767°C1
    Temperature scaleITS-90
    Applicable standardsNIST-175
    Display resolution0.1°C, 0.1 K < 1000
    1°C, 1 K ≥ 1000
    1. Only the Fluke Models 53 II B and 54 II Bthermometers are capable of measuring N, R, and S-type thermocouples.
    Environmental Specifications
    Operating temperature-10°C to 50°C
    Storage temperature-40°C to 60°C
    Humidity (without condensation)0% to 90%; 0°C to 35°C
    0% to 70%; 0°C to 50°C
    Safety Specifications
    Overvoltage categoryCSA C22.2 No. 1010.1 1992; EN 61010 Amendments 1,2
    Agency approvalsCE, CSA, TÜV (pending)
    Mechanical and General Specifications
    Size (L x W x D)173 x 86 x 38 mm
    Weight400 g
    Batteries3 AA batteries; typical 1000-hour life
    • Impact absorbing holster
    • One 80PK-1 bead probe thermocouple

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