The Snap-on EEPV511 Vacuum Pressure Gauge Tester Set is a high-quality compression tester specifically designed for gasoline engines in passenger vehicles. With multiple measure scales and a unit quantity of 1, this tester is a reliable tool for diagnosing engine performance issues. Made in the United States by the trusted brand Snap-on, this unit does not come with a warranty but ensures accurate and professional-grade testing results. Perfect for automotive mechanics and car enthusiasts looking to maintain and improve engine efficiency, this vacuum pressure gauge tester set is a valuable addition to any diagnostic service tool collection. Set comes with everything you see in photos. Set is complete.