The Bowmonk ISOCheck 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 ISOCheck quickly identifies fault details and the location (tractor unit, Susie lead or trailer), which is not always easy to locate.
The ISOCheck is extremely easy to use, with minimum setup time, and results are shown via an easy to interpret series of LEDs on the side of the unit. The ISOCheck works by testing all the ISO 7638 pins against each other for live and earth.