Key features

• Dual-input digital thermometer for lab, QA, process calibration, food safety and HVAC
• Shows any combination of T1, T2, T1-T2, plus MIN, MAX, or AVG on the large backlit dual display
• 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

Product overview: Fluke 52 II Dual Probe Digital Thermometer

The Fluke 52 II dual-input digital thermometer delivers 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.

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-
• Features an electronic offset function that compensates for thermocouple errors to maximize 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
• 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

Temperature accuracy

• Above -100°C
• J, K, T, E, and N-type: ±[0.05% + 0.3°C]1
• R and S-type: ±[0.05% + 0.4°C]1
• Below -100°C
• J, K, E, and N-types: ±[0.20% + 0.3°C]1
• T-type: ±[0.50% + 0.3°C]

Temperature

• J-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-type 0°C to 1767°C1

Temperature scale ITS-90

Applicable standards NIST-175

Display resolution 0.1°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 category CSA C22.2 No. 1010.1 1992; EN 61010 Amendments 1,2

Agency approvals CE, CSA, TÜV (pending)

Mechanical and General Specifications

Size (L x W x D) 173 x 86 x 38 mm

Weight 400 g

Batteries 3 AA batteries; typical 1000-hour life