Petrol engine compression test kit. It is used to measure the pressure within an engine's cylinders. Here is some helpful information:
It measures compression in PSI (pounds per square inch), with a maximum reading of 300 PSI.
It includes various adapters to fit different spark plug thread sizes (14mm and 18mm).
The kit features a gauge with a reset button and often a quick release valve for efficient testing.
It helps diagnose engine problems such as worn piston rings or leaking valves by identifying low compression readings.
Some models have digital displays for accurate readings and multiple unit options like PSI, KPA, Bar, and KG/CM2.
The kit typically includes a flexible hose and both straight and angled connectors for easy access to spark plug holes.