Combustion Leak Detector designed to diagnose blown gaskets, cylinder heads and more The Sealey VS0062 Combustion Leak Detector checks for CO2 in the cooling system and indicates its presence by testing fluid colour change. Use it to diagnose blown gaskets, cracked blocks and cylinder heads easily and quickly. Features: Diagnose blown gaskets, cracked blocks and cylinder heads easily and quickly Checks for CO2 in the cooling system and indicates its presence by testing fluid colour change Use with cone adaptor or in conjunction with radiator caps from Model No\'s VS001, VS0011, VS0033 and VS006 For Test Fluid Refill order Model No. VS0061F Specification: Fluid Refill: VS0061F