Which car diagnostic instrument is better?

It is divided into general type and special type. Special diagnostic instruments used in general 4S shops and specially developed for a specific manufacturer, such as Ford's TECH-2 and WDS, are all developed by American SPX company, and Siemens' 505 1/5052 is more popular. At present, the general type is mainly made in China, and the well-known ones are, Jinde, Dr. Che and Jin Pentium. , which provide similar functionality. There are Bosch and SPX OTC in foreign countries, but the price is relatively expensive, and you need to pay for the upgrade. For general repair shops, it is definitely more appropriate to choose domestic cars, because foreign brands have a serious shortage of support for domestic cars, and timely updating is actually the first. There are also many diagnostic instruments with OBD function, the price is not much more expensive than those without OBD, and mainstream brands have them.