5606 Series - Full immersion PRT/RTD probes: Designed to perform in extreme environments where both the transition junction and the lead wires are required to withstand temperatures covering the entire operating range of the probe. Applications include calibration or validation of sensors used in laboratory or bio freezers, walk-in refrigerators, autoclaves, ovens, stability test chambers, furnaces and incubators. Available for sale in the United States and Canada only.