The 5609 Secondary Reference PRT offers a stable thermometer from –200 °C to 670 °C and calibration excellence. Its short-term stability at the triple point of water is only ± 10 mK and its one-quarter inch (6.23 mm) diameter lets you get accurate measurements in only 100 mm of immersion. The 5608 is also a ± 10 mK probe at the triple point of water, but its one-eighth inch (3.18 mm) diameter gets you accurate measurements from –200 °C to 500 °C with only 80 mm (3.1 in) of immersion.
Fluke 5608 and 5609 Secondary PRT Probes with calibration options
The 5609 Secondary Reference PRT offers a stable thermometer from –200 °C to 670 °C and calibration excellence. Its short-term stability at the triple point of water is only ± 10 mK and its one-quarter inch (6.23 mm) diameter lets you get accurate measurements in only 100 mm of immersion. The 5608 is also a ± 10 mK probe at the triple point of water, but its one-eighth inch (3.18 mm) diameter gets you accurate measurements from –200 °C to 500 °C with only 80 mm (3.1 in) of immersion.