PAC high temperature AE sensors have been designed to operate at temperatures up to 1000� F (540�C). These are used in high temperature Nuclear and Fossil fuel utility plants monitoring for leaks and cracks in pipelines and vessels and are also used in aerospace engine monitoring applications. Features - Can operate at temperatures up to 1000ºF - Can be used in lieu of waveguides, directly on structure surfaces - Used in aerospace engine monitoring applications, processing plants and power plants to monitor high temperature processes.