The CO2 Head Gasket Leak Detector GEKO is a device designed to detect the presence of exhaust gases in the refrigerant, which may indicate a faulty cylinder head gasket, cracks in the cylinder head, or in the engine block. The kit allows for up to 25 individual tests. The tool operates based on a chemical reaction using a special CO₂ testing liquid.

• Detection method: Chemical reaction (CO₂ testing liquid)
• Testing capacity: Up to 25 tests