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Fluke 561 HVAC/R Infrared and Contact Thermometer-

Fluke 561 HVAC/R Infrared and Contact Thermometer

Combines the temperature measurement functions that are ideal for industrial, electrical, and HVAC/R professionals. This infrared and contact thermometer measures both IR and contact temperature. Additionally, it features a handy Velcro® pipe probe or, plug in any industry standard, K-type mini-connector thermocouple probe.

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An IR and contact thermometer that means the needs of most industrial and residential temperature applications

Combines the temperature measurement functions needed by industrial, electrical, and HVAC/R professionals in one tool. It features K-type thermocouple capability enabling users to take contact temperature measurements. This tool is fast, efficient, and easy to use.

Use its IR capabilities to scan large areas or small objects quickly and efficiently, without shutting down any equipment. You can also measure hot, moving, electrically energized, and hard-to-reach objects instantly. Check motors, insulation, breakers, radiant heating, pipes, corroded connections, and wires. Plus, scan ducts, and other hard-to-reach objects from the floor and leave your ladder in the truck.

Laser-guided sighting for IR measurements

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Additional information


-40 to 1022°F ( -40 to 550°C)

Laser Power

Class 2(II) operation; Output <1 mW, wavelength 630 to 670 nm

D:S (Distance to Spot Size)


Easy Emissivity Selector

Adjustable with three settings:
Low (0.3)
Medium (0.7)
High (0.95)

Display Accuracy (Assumes Ambient Operating Temperature of 73 to 77°F (23 to 25°C))

±1.0% of reading ±1% of reading or ±2°F (±1°C), whichever is greater below 32°F (0°C), ±2°F (±1°C) ±0.1°/1°

Response Time

500 mSec (95% of reading)


±0.5% of reading or ±2°F (±1°C), whichever is greater

Spectral Response

8 to 14 µm

Laser Sighting

Single point laser

Laser Shutoff

Laser turns off above ambient temperature of 104°F (40°C)

Display Resolution

0.1°F (0.1°C) of reading

Power, Battery Life

2 x AA batteries (alkaline or NiCD)

Relative Humidity

10 to 90% RH non-condensing, at <86°F (30°C)

Battery Life

12 hours

Display Hold

7 seconds

Backlit Display

Yes, LCD with dual temperatures (current and MAX/MIN/DIF/KTC), low battery, F/C indicator, and Scan/Hold options

Operating Temperature

32 to 120°F (0 to 50°C)

Storage Temperature

-25 to 150°F (-20 to 65°C)

MAX, MIN, DIF Temperatures


Thermocouple Type K Mini Adapter Input

Yes, compatible with industry standard K type probes with mini-connector. Displays to the thermometer temperature range.

Thermocouple Type K Fabric Hook-and-Loop Fastener Pipe Probe

Yes, with a temperature range of 32 to 212°F (0 to 100°C) and accuracy of ±4°F (±2.2°C)

HVAC Measurement Guide


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