| Specifications |
| Backlit display for use in poorly lit areas |
| Fluke 61 |
Yes |
| Fluke 63 |
Yes |
|
| Holds temperature readings |
| Fluke 61 |
Yes |
| Fluke 63 |
Yes |
|
| Range |
| Fluke 61 |
-18 to 275 ºC (-0 to 525 ºF) |
| Fluke 63 |
-32 to 535 ºC (-25 to 999 ºF) |
|
| MIN/MAX/AVG |
| Fluke 61 |
N/A |
| Fluke 63 |
MAX |
|
| Datalogging |
| Fluke 61 |
N/A |
| Fluke 63 |
N/A |
|
| Distance to spot ratio |
| Fluke 61 |
8:1 |
| Fluke 63 |
12:1 |
|
| Hi-Lo Alarm |
| Fluke 61 |
N/A |
| Fluke 63 |
Yes |
|
| Optional RTD probe (contact temperature measurement) |
| Fluke 61 |
N/A |
| Fluke 63 |
N/A |
|
| Emissivity |
| Fluke 61 |
Fixed at 0.95 |
| Fluke 63 |
Fixed at 0.95 |
|
