LB03 Bluetooth OBD2 Scanner

If you only need a quick read on a check-engine light, a phone-based scanner can be simpler than carrying a separate handheld tool, if you need deeper system diagnostics, this one has clear limits. The LB03 connects to iOS, Android, and Windows devices over Bluetooth LE 5.0 and works with the free AutoOBDII app, with no subscription listed for its basic functions. It’s aimed at standard OBD-II checks, not every warning light or service procedure, so matching its scope to your car matters.