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	53 II Temperature Logging Digital Thermometer

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Application

Recommended uses

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

Contact

Probe type	Thermocouple K, J, T, E	Thermocouple K, J, T, E, N, R, S
Number of inputs	1	1
Temperature range	T-type: -250 °C to +400 °C (-418 °F to +752 °F)	T-type: -250 °C to +400 °C (-418 °F to +752 °F)

General

What temperature range do you need to measure?	500 °C (+932 °F)	900 °C (+1600 °F)
Do you need more than 1 % 1 °C (2 °F) accuracy?
Do you need to download data for analysis and reporting?
Do you need on-board memory for trending and comparison?

Infrared / non-contact

Non-contact temperature range

500 °C (+932 °F)

Physical

Form factor	Flat	Flat
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)	17.3 x 8.6 x 3.8 cm (6.8 x 3.4 x 1.5 in)
Battery	3 AA	3 AA
Warranty	3 years	3 years

Measurement Type

Temperature area

Surface temperature

Internal, ambient and non-contact surface temperature

Special features

Time stamp	Relative	Time of day
Min-Max-Avg-Dif	Min-Max-Avg-Dif	Min-Max-Avg-Dif
Hands-free logging

Other features

Do you want to use industry standard thermocouples?

Data storage and download

Number of on-board memory locations		500
PC download and software		FlukeView Forms

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