Interchangeable alternating current monitoring device

The invention provides interchangeable alternating current monitoring equipment, an electric quantity acquisition module is used for measuring an electric connector and generating original electric quantity data, and a calibration storage module is used for storing an electric quantity calibration coefficient; the monitoring assembly is detachably connected with the signal acquisition assembly, the main control module is used for reading original electric quantity data of the electric quantity acquisition module and calibrating an electric quantity calibration coefficient of the storage module, and the main control module is further used for generating calibrated electric quantity data according to the original electric quantity data and the electric quantity calibration coefficient. Because the electric quantity calibration coefficient is pre-stored in the calibration storage module of the signal acquisition assembly, after the signal acquisition assembly or the monitoring assembly is replaced, the main cont