LEAKChecker LEAKChecker is an ultrasound solution designed to find compressed air and vacuum leaks in noisy environments. Focused Compressed air leaks are a senseless waste of energy. Find and fix them fast with SDT LEAKChecker; an ultrasound solution focused on reducing waste and saving you money. Simple LEAKChecker is so easy to use. Simply open the box, switch it on, and start finding leaks. Enjoy crystal-clear sound in the headset and a vibrant color display. LEAKChecker makes leak surveying fun again. Affordable Air leaks are an expensive problem… and LEAKChecker is the affordable solution. Built with SDT quality, it’s offered at a price that will leave you speechless.