Draper - 6-48V Automotive Digital Circuit Tester Kit (5 Piece) Expert Quality circuit tester kit, with easy to read LCD digital display. Compatible with most vehicles including; cars, motorcycles, commercial vehicles, trailers, boats and agricultural machinery. Suitable for testing on 6/12/24/48V DC systems. The interchangeable connectors provide a 'Plug and Play' feature. The comprehensive accessories include insulated probes and a heavy duty insulated earth clip making the kit ideal for most testing applications. Supplied in a heavy duty plastic storage case.