Compression for diesel engines AT4003 - a tool that measures the compression pressure in the engine. The compression size - it is one of the most important characteristics to determine whether the internal combustion engine repair your need. In a set with this model compression tester have adapters for different glow of candles (14 pcs), so it can be used with many kinds of diesel engines, it is universal. Simplicity and ease of use - is also important Advantages: of the device. Buy Compression AT4003 is the right decision, he will certainly become a reliable companion in your work.