AM1612 and AM1642 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 biology freezers, walk-in refrigerators, autoclaves, ovens, stability test chambers, furnaces, and incubators. These probes feature short term stability of 20 mK at TPW and long term drift of 40 mK at Triple Point of Water (TPW). The AM1612 has a temperature range of -196 to 180ºC (-320.8 to 356ºF)