Find specific points that leak in your HVAC systems with ultrasonic leak detectors. Our ultrasonic leak detectors can find leaks in any type of refrigerant or gas. They allow you to find the smaller, peskier leaks other devices and methods are not receptive of. Use our ultrasonic leak detectors with malfunctioning bearings and valves. They work on refrigerant, compressed air, natural gas, propane, seal and gaskets and electrical integrity.