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52 II Dual Input Digital Thermometer

FLUKE 52 II Digital Thermometer designed to measure two different temperatures at the same time, perfect for domestic & industrial environments.

Part Number:
FLUKE-52-2 50HZ

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621.60 incl. VAT)
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FLUKE 52 II Dual Input Digital Thermometer

The FLUKE 52 II is a dual-input digital thermometers designed to use external J-, K-, T-, and E-type thermocouples (temperature probes) as temperature sensors. 

It delivers a fast response with laboratory accuracy (0.05% + 0.3°C).  You can use the 52 II to measure two contact temperature inputs simultaneously 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 from both inputs in multiple ways.  And the sleep mode feature preserves battery life to give you a typical thousand hours of operation.


FLUKE 52 II Applications:

It‘s a dual-input digital thermometer prefect for:

  • Laboratory use
  • Quality Assurance
  • Process calibration
  • Food safety
  • Heating, Ventilation, and Air Conditioning (HVAC)


FLUKE 52 II Key Features:

  • Large backlit dual display
  • Shows any combination of T1, T2, T1-T2, plus MIN, MAX, or AVG
  • Features fast response and laboratory accuracy (0.05% + 0.3°C)
  • Includes a relative time clock on MIN, MAX, and AVG to provide a time reference for major events
  • Easy-to-access battery door that allows replacing the battery without breaking the calibration seal
  • Features an electronic offset function that compensates for thermocouple errors to maximise overall accuracy
  • Measures J, K, T, and E-type thermocouples
  • Handles temperatures up to 900°C (1600°F)
  • Presents results in °C, °F, or Kelvin (K)
  • Provides a user-friendly front panel that is easy to set up and operate
  • Powered by three, standard AA batteries
  • Offers sleep mode to increase battery life; 1000-hour battery life typical
  • 3 year warranty


Temperature range: 
J-type Thermocouples   -210°C to 1200°C (-346°F to 2192°F)
K-type Thermocouples   -200°C to 1372°C (-328°F to 2501°F)
T-type Thermocouples   -250°C to 400°C (-418°F to 752°F)
E-type Thermocouples   -150°C to 1000°C (-238°F to 1832°F)
N-type** Thermocouples   -200°C to 1300°C (-328°F to 2372°F)
R** and S-type**   0°C to 1767°C (32°F to 3212°F)


**Only the FLUKE Models 53 and 54 Series II thermometers are capable of measuring N, R, and S-type thermocouples.

▶ Video: An overview of the FLUKE 50 II Series

Thumbnail for the FLUKE 50 II Series video

What comes with the FLUKE 52-II?

  • FLUKE 52 II Dual Input Digital Thermometer
  • Impact absorbing holster
  • Two 80PK-1 beaded probe thermocouples

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.


Comparison Chart for: Fluke 52 II Dual Input Digital Thermometer

51 II52 II53 II54 II
Thermocouple typesJ,K,T,EJ,K,T,EJ,K,T,E,N,R,SJ,K,T,E,N,R,S
Number of inputsSingleDualSingleDual
Time stampRelative TimeRelative TimeTime of DayTime of Day
Splash/Dust resistant
Dual display with backlight
Min/Max/Avg recording
(T1-T2) True differential
Data logging up to 500 points
IR data port for interface to PC
Compatible with optional FLUKEView Software
Product Downloads


Accessory Code Description Price (Ex VAT)
C50 C50 Soft Meter Case (for DMMs eg. 114; 117...) £50.00 ADD
80PT-EXT 80PT-EXT Extension Wire Kit (Type T) £79.00 ADD
CXT170 CXT170 Extreme Case £227.00 ADD