The Exair Updated Ultrasonic Leak Detector (ULD) is a handheld instrument designed to help locate the source of leaks in a compressed air system. With this tool, testing the various unions, pipes, valves, and fittings of a complete installation can be done at distances up to 20' away. The ULD can detect the vibrations of high-pressure gases, creating an audible sound through supplied headphones as well as indicating intensity via front-facing LED display as it moves closer to the leak origin. Adjustments can be made to filter out background noise with "+" or "-" buttons for fine-tuning sensitivity. The updated ULD offers an increased ability to detect leaks in hard-to-reach areas while complying with the IEX 61326-1 standard.