Description Advanced circuit tester for testing your truck’s ISO 7638 Socket, Trailer Susie, and ABS Functions ISOTester is an advanced diagnostic device for testing a truck’s ISO 7638 socket, trailer Susie lead and ABS functions for short or open circuits. By running a simple series of tests the ISOTester quickly identifies fault details and the location (tractor unit, Susie lead or trailer), which is not always easy to locate. Tests truck’s ISO 7638 socket Tests ISO 7638 Susie lead Tests vehicle’s ABS functions Reveals missing/faulty ABS warning light Quick to setup Easy to interpret LED display Powered by tractor unit’s ISO 7638 socket Durable construction Designed and manufactured in the UK.
