(Fluke Corp.: Everett, WA) -- The Hart Scientific Division of Fluke Corp. has introduced new full-immersion platinum resistance thermometer (PRT) probes designed to perform in extreme environments.

The Hart Scientific 5606 and 5607 Full Immersion PRTs are designed to perform in "full immersion" applications where both the transition junction and the lead wires must withstand temperatures covering the entire operating range of the probe. Such applications can include calibration or validation of sensors used in laboratory or bio freezers, walk-in refrigerators, autoclaves, ovens, stability test chambers, furnaces, or incubators.

The Hart Scientific 5606 has a temperature range of -200°C to 160°C, while the 5607 has a range of 0°C to 450°C.

The 5606 is only 2 inches (50 mm) in length with a sheath diameter of 1/8 inch (3.1 mm). Because it can be fully immersed over its entire temperature range, users need not worry about calculating minimum immersion depth and can immerse the entire probe, transition junction, and lead wires in either noncorrosive liquids or dry mediums.

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