CEL Doctor: The ANCEL AD310 is one of the best-selling OBD II scanners on the ... OBDII Protocols and Car Compatibility: Many cheap scan tools do not really support all OBD2 protocols.

But first, what is an automotive scan tool? Simply put, it's a device that plugs into the diagnostic port found ... while other, professional-grade offerings can cost thousands.

Snap-on Apollo+ scan tool simplifies diagnostics with Health Scan, pre- and post-scans, and cloud-based reports for streamlined repairs.

Also: The best GaN ... automotive scan tools over the years, from basic to more high-end. Finally, I got the chance to take a look at a tool that redefines professional-level diagnostics: the ...