| Product specifications |
| Infrared temperature range |
| 566: | -40 °C to 650 °C (-40 °F to 1202 °F) | | 568: | -40 °C to 800 °C (-40 °F to 1472 °F) |
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| Infrared accuracy |
| | < 0 °C (32 °F): ± (1.0 °C (± 2.0 °F) + 0.1°/1 °C or °F);
> 0 °C (32 °F): ± 1 % or ± 1.0 °C (± 2.0 °F), whichever is greater |
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| Display resolution |
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| Infrared spectral response |
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| Infrared response time |
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| Thermocouple Type-K input temperature range |
| | -270 °C to 1372 °C (-454 °F to 2501 °F) |
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| Thermocouple Type-K input accuracy |
| -270°C to -40°C: | ± (1 °C + 0.2 °/1 °C) (-454 °F to -40 °F: ± (2 °F + 0.2 °/1 °F)) | | -40°C to 1372°C: | ± 1 % or 1 °C (-40 °F to 2501 °F: ± 1 % or 2 °F), whichever is greater |
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| D:S (distance to measurement spot size) |
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| Laser sighting |
| | Single-point laser < 1 mw output Class 2 (II) operation, 630 nm to 670 nm |
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| Minimum spot size |
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| Emissivity adjustment |
| | By built-in table of common materials or digitally adjustable from 0.10 to 1.00 by 0.01 |
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| Data storage with Date/Time stamp |
| 566: | 20 points | | 568: | 99 points |
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| PC Interface and cable |
| 566: | None | | 568: | USB 2.0 with FlukeView® Forms software |
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| Hi/Low alarms |
| | Audible and two-color visual |
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| Min/Max/Avg/Dif |
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| Display |
| | Dot matrix 98 x 96 pixels with function menus |
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| Backlight |
| | Two levels, normal and extra bright for darker environments |
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| Trigger lock |
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| Switchable Celsius and Fahrenheit |
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| Power |
| 566: | 2 AA/LR6 Batteries | | 568: | 2 AA/LR6 Batteries and USB when used with a PC |
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| Battery life |
| If used continuously: | laser and backlight on,12 hours; laser and backlight off, 100 hours |
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| Operating temperature |
| | 0 °C to 50 °C (32 °F to 122 °F) |
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| Storage temperature |
| | -20 °C to 60 °C (-40 °F to 140 °F) |
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| Bead thermocouple Type-K range |
| | -40 °C to 260 °C (-40 °F to 500 °F) |
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| Bead thermocouple Type-K accuracy |
| | ± 1.1 °C (2.0 °F) from 0 °C to 260 °C (32 °F to 500 °F), typically within 1.1 °C (2.0 °F) from -40 °C to 0 °C (-40 °F to 32 °F) |
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