This test & development kit includes CC-688 main control unit and accessories, test stand and switch for simulation testing, and an OBD interface CANBUS simulator, also including an AC adapter for power supply. Using this test & development kits, it is not necessary to install the T-Box on the car to test, plugged into AC power socket can simulate the T-Box working, this testing & development kits is mainly used for software company’s R&D and car rent company’s operation and maintenance personnel testing and maintenance, etc.