Features and Benefits:BT508 Battery and Electrical System Analysis Tool and App;Includes a Wireless Bluetooth Vehicle Communication Interface for Battery and Electrical Component Registration;Support In-vehicle and Out-of-vehicle Testing of Passenger Vehicle Batteries;Test 6- and 12-volt Batteries: 100 - 2000 CCA;Test 12- and 24- Cranking/Charging Systems;Test Flooded, AGM, AGM Spiral, EFB and GEL Batteries;Compatible with CCA, CA, SAE, EN, IEC, DIN, JIS and MCA;Read and Erase Codes of All Available Systems;Illustrated Guide for Battery Position and Testing;Attached Cable with Clamps;The BT508 is powerful yet, lightweight battery and electrical system tester that uses Adaptive Conductance, an advanced battery analysis method, to produce a more accurate examination of the battery�s cold cranking ability and reserve capacity, vital to determining a battery�s true health. Download the free and easy-to-use mobile app, available for iOS and Android devices, to use with the BT508 to perform testing and display test results. The BT508 package includes a wireless Bluetooth vehicle communication interface enabling battery and electrical component registration.