LITE-CHECK's INSPECTOR 930 TRAILER TESTER is a complete, all-in-one trailer diagnostic system which simplifies ABS, brakes, air, lights, and electrical testing. It provides the ability for a single technician to perform a full inspection in one trip around the trailer. The devices tests ABS, brakes, lights, air, and electrical systems and offers clear dgital diagnostic messages and the 3-step ABS process. All Post-2001 PLC ABS codes are included along with the latest roll stability codes.