The BD310 contains both OBD diagnostic and OBD Meter Gauge functions, allowing the user to switch between the handheld mode and wireless Bluetooth mode freely. With the Bluetooth mode, it will turn your iOS and Android device into a sophisticated diagnostic tool, trip computer, and real-time performance monitor. ANCEL BST200 is a classic battery analyzer and dedicatedly developed for both beginners and professional technicians. It detects all automotive 12V lead-acid battery with a capacity of 100 to 1100 CCA, including regular flooded, AGM flat plate, AGM spiral, as well as GEL batteries. The battery tester provides a quick, easy and accurate test result in only 3 seconds for you to view battery charging status, check battery health status and detect faults.