Inspection instrument

The utility model relates to an inspection tool which is flexible to use and reliable in data, in particular to an intelligent inspection instrument. The inspection instrument comprises an outer shell, a microprocessor, a communication module and a signal acquisition circuit board, wherein the microprocessor, the communication module and the signal acquisition circuit board are installed in the outer shell, and the communication module and the signal acquisition circuit board are electrically connected with the microprocessor. The system also comprises a graphic code identification display module, and the graphic code identification display module is electrically connected with the microprocessor. According to the utility model, the graphic code identification display module formed by thegraphic code scanner and the graphic code display is integrated; the functions of conveniently scanning, reading and displaying the graphic codes are achieved, data interaction is conducted through the graphic codes, data col