Tests compression on all major model vehicle platforms, domestic and foreign with gasoline engines, including mini engines Quick coupler connection on gauge assembly for fast and easy changing of hose and adapter assemblies 2-1/2"¿gauge has dual scale dial with ranges from 0-300 psi and 0-21 BAR Easy push-button deflator for fast service Rubber gauge boot for added protection Includes: Small engine tester with heavy-duty hose M14 flexible hose adapter with short thread M14 flexible hose adapter with long thread M18 flexible hose adapter with short thread M18 solid long reach adapter M10 and M12 solid adapters Instructions and labeling that clearly identifies each product Molded storage case