Three-meter product automatic testing device

The utility model relates to an automatic testing device for a three-meter product. The system comprises a power supply module, a main control module, a UUT power supply module, a relay module, a UUTcommunication isolation module, a communication level conversion module, a current measurement module, a voltage measurement module and a motor measurement module. Wherein the power supply module supplies power to the testing device, the UUT power supply module supplies power to a tested product, the main control module is respectively connected with the relay module, the UUT communication isolation module, the communication level conversion module, the current measurement module, the voltage measurement module and the motor measurement module, and the communication level conversion module isconnected with the testing device and the upper computer. The advantages of the utility model are that the device has a communication function and is convenient for realization of automatic test; themanufacturing cost is low,