The Central Locking Tester Main Unit is a standalone tool designed for testing and diagnosing central locking systems in vehicles. It features a user-friendly interface with a large, easy-to-read display that shows system status and error codes. The main unit can be connected to different types of locking mechanisms using various probes and adapters. With the Central Locking Tester Main Unit, automotive technicians can quickly and accurately diagnose central locking system issues and perform necessary repairs. It’s a must-have tool for any automotive repair shop.