Fluke 51-II Single Input Digital Thermometer


Offers fast response and laboratory accuracy (0.05% + 0.3?C) in a rugged, handheld test tool.

SKU: 51-II Category:


Fluke 51-II Offers

Take contact temperature for checking motors, insulation, breakers, pipes, corroded connections, liquids, and wires with industrial standard J, K, T, and E type thermocouple (temperature sensors).


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 ?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 operateSleep mode increases battery life; typical 1000-hour battery lifeBattery 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


Test and measurement

Fluke 51-II Specifications

Temperature Accuracy
Above -148?F (-100?C): ?J, K, T, and E-type: ?(0.05% + 0.3?C)

Below -148?F (-100?C): ?J, K, and E-types: ?(0.20% + 0.3?C); T-type: ?(0.50% + 0.3?C)
Temperature Range

J-type: -346 to 2192?F (-210 to 1200?C)

K-type: -328 to 2501?F (-200 to 1372?C)

T-type: -418 to 752?F (-250 to 400?C)

E-type: -238 to 1832?F (-150 to 1000?C)
Temperature Scale
Applicable Standards
Display Resolution
0.1?C, 0.1 K <1000 1?C, 1 K >=1000
280 g (10 oz)
1.1 x 3.1 x 6.4″ (2.8 x 7.8 x 16.2 cm)
3 x AA batteries

Click here for complete specifications on the Fluke 51-II


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