The KD Tools Compression Tester is a precision instrument made by ACCURATE INSTRUMENTS in the USA. It features a maximum pressure of 300 psi and comes with metric fittings for easy testing of passenger vehicles. The tester is designed to be user-friendly and reliable for diagnosing engine issues. With a manufacturer part number of 15040, this compression tester is a valuable tool for auto mechanics and car enthusiasts looking to ensure optimal engine performance.