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5608 / 5609 Secondary Reference PRTs

5608, 5609 Secondary Reference PRTs

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The 5608 and 5609 are stable thermometers for temperatures ranging from -200°C to 670°C. The short-term stability at the triple point of water is ± 7 mK, and its 6.23mm diameter means you are able to get accurate measurements in 100 mm of immersion. Can also double as a ± 7 mK probe at the triple point of water.


  • 5608: -200°C to 500°C
  • 5609: -200°C to 670°C

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