The document introduces the Fluke Ti25 and Ti10 thermal imagers. It provides an overview of their key features and specifications. The Ti25 and Ti10 offer infrared and visual image fusion, intuitive menu navigation, voice annotation, and storage for thousands of images. They are designed for rugged use and include analysis software. The document explains applications of thermal imaging and how the Ti25 and Ti10 can help identify problems in electrical, mechanical, process, HVAC, and other systems.