Car coolant system detector kit Practical tool for locating leaks in the cooling system, including both internal and external leaks. Includes a compression pump with a pressure gauge for easy testing of radiator and coolant circuit pressure. The tester helps detect internal and external leaks and is well suited for cylinder head gasket failure detection, including identifying which side of the cylinder block is leaking. The cooling system pressure test kit enables quick and straightforward leak testing in the radiator system and supports fast coolant replacement. Use scenarios Before a long trip or during routine maintenance to check for leaks and prevent overheating. After suspected cylinder head gasket or cylinder block issues to determine which side is leaking and guide . After coolant system service or refill to verify a proper seal and correct system pressure. Attributes emphasized Function: leak detection, pressure testing, gasket failure assessment, rapid coolant replacement. Compatibility: designed for car cooling systems (specific vehicle compatibility not listed in the description). Size and material: not specified in the provided description. Performance: enables quick and easy testing of radiator and coolant circuit pressure and leaks.