The utility model relates to an appearance is differentiated to intelligence table trouble, including casing, liquid crystal display, button and install the automatically controlled unit in the casing, the casing be in the same place by procapsid and back casing lock, and this casing includes the demonstration section on upper portion and handheld section of lower part, liquid crystal display is installed to the demonstration section of procapsid, installs the display lamp that a plurality of even intervals set up in the demonstration section of this liquid crystal display below, a plurality of buttons are installed to the handheld section of procapsid, a plurality of connecting pieces that the installation face system of procapsid has even interval to set up, it is fluted to the installation face system of back casing that should the connecting piece. The utility model discloses about convenient to carry, test time shortened to one minute, the concurrent operation was simple and convenient, was applicable to on -the -spot operation maintainer and used, and personnel are done to the unskilled labor can accomplish the operation, easy operation, and the interface is clear, powerful to accurate judgement failure cause has the value of extensive popularization and application.