The Pro-Check 720 is an all-in-one electrical diagnostic tester designed for heavy-duty trailers with a standard 12V AC or DC 7-way round-pin connector. Capable of testing both AC and DC currents, its advanced software automatically displays circuit voltage, amperage, and condition on an easy-to-read digital screen, identifying and alerting technicians to circuit faults (open, short, open ground, chassis ground) with a unique fault alarm. The system safeguards vehicle wiring by automatically shutting down in case of excessive amperage or low voltage.

Included is a full-function remote control that mirrors the tester's capabilities, allowing technicians to perform a complete 360° visual inspection from anywhere around the trailer, enhancing ease of use and efficiency.