Fluke 51 II Handheld Digital Probe Thermometer

Fluke 51 II Handheld Digital Probe Thermometer is rated 5.0 out of 5 by 2.
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  • Fluke 51 II Single Input Digital Thermometer 1

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
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Product overview: Fluke 51 II Handheld Digital Probe Thermometer

The Fluke 51 II single input 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.

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

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Includes:

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

Hello, Does this thermometer comes with a CAL Certificate?

Asked by: Otov
The Fluke 51 II Handheld Digital Probe Thermometer CAL is available to purchase through our authorized distributors - https://www.fluke.com/en-us/where-to-buy. Please use Part Number #5160551 to order.
Answered by: FlukeCorp
Date published: 2024-04-22

The product overview shows a max temp of 900C, but the specs show up to 1372C with a K type thermocouple. What is the tru max range of the device? Can I reach 1372?

Asked by: Bart321
The max range of the Fluke 51 II Handheld Digital Probe Thermometer is dependent on the type of thermocouple, but the K-type range is -200C to 1,372C.
Answered by: FlukeCorp
Date published: 2024-03-21

Our company has 2 of these Fluke thermometers and they will be due for annual calibration in August. Where can I send these to get re-calibrated?

Asked by: CJPostel
To get information regarding calibration services please contact Fluke Service at 888-993-5853 or email service@fluke.com.
Answered by: FlukeCorp
Date published: 2024-10-23

Is a thermocouple included with the thermometer?

Asked by: gespinoza19
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Rated 5 out of 5 by from Great Reliability! I bought this 2 years ago and its still in perfect condition! I have never had any trouble with this fluke. It continues to perform the way I need it to and never fails a calibration! I would recommend this fluke to anyone in the Vacuum Furnace indsutry!
Date published: 2016-12-07
Rated 5 out of 5 by from Fluke thermometers accurate and reliable We use the Fluke 51-II units for our online temperature checks. I have found the units accurate and reliable. I also use the Fluke Lab calibration service to keep the units in calibration.
Date published: 2016-12-07
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