Ultrasound should be a part of any condition monitoring program. It has wide range of applications and the tool is very handy and easy to use. This book presents the different applications of Ultrasound Detection technique. Many potential exist for minimizing energy waste and increasing asset availability in plants using instruments based on airborne/structure borne ultrasound technology. They broaden the definition of "Condition Monitoring" to cover considerably more than the most elementary mechanical fault examinations. These devices' inspection capabilities range from trending bearing status to determining lack of lubrication, finding compressed air leaks, and detecting arcing, tracking, and corona emissions in both open and enclosed electric equipment since they detect friction, ionization, and turbulence. This method is based on portable equipment that are used to monitor and analyze bearing condition, find leaks (pressure and vacuum), test steam traps and valves, find electrical issues, and spot potential issues with gears, motors, and pumps. This talk will give a quick rundown of the technology, its uses, and energy savings cost analysis and suggested inspection techniques.