Haug Quality Leak Detectors & Leak Detection Equipment Haug Quality Equipment is the leading supplier of leak detectors and quality assurance equipment for the food packaging industry. For over 10 years, companies have turned to us to provide reliable equipment in solving their needs for dependable leak detection equipment. Our tray sealers are suitable for package development and prototype production runs. Our new Pack-Vac Leak Detectors with Electronic Controller for Altitude Simulation is a perfect solution when testing packages for burst strength. Package integrity testing at high altitudes is especially important when considering transportation profiles by truck or air freight.