| General |
| Backlit display for use in poorly lit areas |
Fluke 61 Yes
Fluke 65 Yes
Fluke 62 Yes
Fluke 63 Yes
Fluke 66 Yes
Fluke 68 Yes |
| Holds temperature readings |
Fluke 61 Yes
Fluke 65 Yes
Fluke 62 Yes
Fluke 63 Yes
Fluke 66 Yes
Fluke 68 Yes |
| Range |
Fluke 61 -18 to 275 °C (-0 to 525 °F)
Fluke 65 -40 to 500 °C (-40 to 932 °F)
Fluke 62 -30 to 500 °C (-20° to 932 °F)
Fluke 63 -32 to 545 °C (-25 to 999 °F)
Fluke 66 -32 to 600 °C (-25 to 1100 °F)
Fluke 68 -32 to 760 °C (-25 to 1400 °F) |
| MIN/MAX/AVG |
Fluke 61 N/A
Fluke 65 MIN/MAX
Fluke 62 MAX
Fluke 63 MAX
Fluke 66 All
Fluke 68 All |
| Datalogging |
Fluke 61 N/A
Fluke 65 N/A
Fluke 62 N/A
Fluke 63 N/A
Fluke 66 Yes
Fluke 68 Yes |
| Distance to spot ratio |
Fluke 61 8:1
Fluke 65 8:1
Fluke 62 10:1 at 80% energy
Fluke 63 12:1
Fluke 66 30:1
Fluke 68 50:1 |
| Hi-Lo Alarm |
Fluke 61 N/A
Fluke 65 N/A
Fluke 62 N/A
Fluke 63 Yes
Fluke 66 Yes
Fluke 68 Yes |
| Optional RTD probe (contact temperature measurement) |
Fluke 61 N/A
Fluke 65 N/A
Fluke 62 N/A
Fluke 63 N/A
Fluke 66 Yes
Fluke 68 Yes |
| Emissivity |
Fluke 61 Fixed at 0.95
Fluke 65 Fixed at 0.95
Fluke 62 Fixed at 0.95
Fluke 63 Fixed at 0.95
Fluke 66 Digitally adjustable (from 0.1 to 1.0 by 0.01)
Fluke 68 Digitally adjustable (from 0.1 to 1.0 by 0.01) |
| Measurement Accuracy |
10 °C to 30 °C (50 °F to 86 °F) : ± 1 °C (2 °F)
Outside 10 °C to 30 °C (50 °F to 86 °F) : ± 1.5 °C (3 °F) or ± 1.5 % of reading, whichever is greater |
