Product selection guide: Contact thermometers

Use our product selection guide to find the thermometer that fits your needs best.

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	Fluke 51 II Handheld Digital Probe Thermometer	561 HVAC Infrared & Contact Thermometer

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Recommended uses

Laboratory, quality assurance, process calibration, food safety, HVAC

Plant / general maintenance, HVAC

What temperature range do you need to measure?	500 °C (+932 °F)	500 °C (+932 °F)
Will you be measuring objects 200 °C (400 °F), moving, uncontaminatable, energized objects or difficult to reach objects?

Non-contact temperature range	500 °C (+932 °F)	500 °C (+932 °F)
Sighting		Laser point
Typical distance to target		Up to 2.5 m (7 ft)

Form factor	Flat	Pistol
Dimensions, approximate (H x W x D)	17.3 x 8.6 x 3.8 cm (6.8 x 3.4 x 1.5 in)	17.5 x 15.5 x 4 cm (7 x 6.5 x 1.7 in)
Battery	3 AA
Warranty	3 years	2 years
Case		Hard case (except 561/R& 561/P)

Temperature area

Surface temperature

Internal, ambient and non-contact surface temperature

Time stamp	Relative
Min-Max-Avg-Dif	Min-Max-Avg-Dif	Min-Max-Avg-Dif
Material type adjustment (emissivity)		HI/MED/LO

Do you want to use industry standard thermocouples?

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