RELD Head Gasket Tester Kit designed to detect combustion leaks in engine cooling systems. This tool helps identify potential head gasket issues by showing a clear visual color change during testing. Compact and easy to use — simply connect, run the test, and get quick, reliable results. Suitable for up to 50 tests, making it a practical option for both professional mechanics and DIY use. Lightweight design makes it convenient for garage or on-the-go diagnostics. Condition: Open box / unused. Includes all components shown in the photos.