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Product selection guide: Contact thermometers

Use our product selection guide to find the thermometer that fits your needs best.
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Fluke 54 II B Dual Input Digital Thermometer with Data Logging
Fluke 561 Infrared and Contact Thermometer
54 II B Data Logging Thermometer with Dual Input561 HVAC Infrared & Contact Thermometer
Non-contact temperature range500 °C (+932 °F)500 °C (+932 °F) 
SightingLaser point 
Typical distance to targetUp to 2.5 m (7 ft) 
Recommended usesLaboratory, quality assurance, process calibration, food safety, HVACPlant / general maintenance, HVAC 
Probe typeThermocouple K, J, T, E, N, R, SThermocouple K 
Number of inputs21 
Temperature rangeT-type: -250 °C to +400 °C (-418 °F to +752 °F)-40 °C to +550 °C (-40 °F to +1022 °F) 
Number of on-board memory locations500 
PC download and softwareFlukeView Forms 
What temperature range do you need to measure?500 °C (+932 °F)500 °C (+932 °F) 
Do you need to download data for analysis and reporting?  
Do you need on-board memory for trending and comparison?  
Do you need to save photos of your measurements for your reports?  
Will you do any hands-free, real-time temperature monitoring with a PC?  
Will you be measuring objects 200 °C (400 °F), moving, uncontaminatable, energized objects or difficult to reach objects?  
Form factorFlatPistol 
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) 
Warranty3 years2 years 
CaseHard case (except 561/R& 561/P) 
Temperature areaSurface temperatureInternal, ambient and non-contact surface temperature 
Time stampTime of day 
Min-Max-Avg-DifMin-Max-Avg-DifMin-Max-Avg-Dif 
Hands-free logging  
Material type adjustment (emissivity)HI/MED/LO 
Will you use the thermometer in a hazardous location where there might be explosive gases?  
Do you want to use industry standard thermocouples?