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    Product overview: Fluke 51 II Handheld Digital Probe Thermometer

    The Fluke 51 II single-input digital thermometer delivers a 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 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.

    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

Specifications: Fluke 51 II Handheld Digital Probe Thermometer

Specifications
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

Models: Fluke 51 II Handheld Digital Probe Thermometer

Fluke 51 II

Fluke 51 II Single Input Digital Thermometer

Includes:

  • Impact absorbing holster
  • One 80PK-1 bead probe thermocouple

Manuals + resources: Fluke 51 II Handheld Digital Probe Thermometer
Manuals (8)
51 & 52 Series II | Users Manual
53 & 54 Series II | Users Manual
53IIB/54IIB | Users Manual
51, 52, 50S and 50D | Statement of memory volatility
51, 52, 53, 54 (and Series II and Series IIB) | Statement of memory volatility
51-54 Series II | Getting Started
51-54 Series II | Service Manual
51-54 Series II | service manual supplement

Compatible accessories: Fluke 51 II Handheld Digital Probe Thermometer
Cases and holsters (4)
Fluke C101 Hard Case
Fluke C50 Meter Case
Fluke CXT170 Extreme Case
Fluke TPAK ToolPak™ Magnetic Meter Hanger
Temperature probes (4)
Fluke 700TC2 Thermocouple Plug Kit 700TC2
Fluke 80PJ-EXT Extension Wire Kit
Fluke 80PK-EXT Extension Wire Kit
Fluke 80PT-EXT Extension Wire Kit
Adapters and cables (1)
Fluke 80CK-M type K Male Mini-Connectors
Probes (8)
Fluke 80PK-1 Bead Probe
Fluke 80PK-22 SureGrip™ Immersion Temperature Probe
Fluke 80PK-24 SureGrip™ Air Temperature Probe
Fluke 80PK-25 SureGrip™ Piercing Temperature Probe
Fluke 80PK-26 SureGrip™ Tapered Temperature Probe
Fluke 80PK-27 SureGrip™ Industrial Surface Temperature Probe
Fluke 80PK-3A Surface Probe
Fluke 80PK-8 Pipe Clamp Temperature Probe