Computer lab power monitoring devices

The utility model discloses a computer lab power monitoring devices relates to power monitoring devices technical field. Monitoring devices includes microprocessor, hall sensor with microprocessor's signal input part connects for gather alternating -current power line's induced magnetic field signal, microprocessor handles the induced magnetic field signal that obtains and judge the back, through passing to management terminal on the communication module, communication module with the microprocessor both way junction is used for realizing communication between monitoring devices and the management terminal, man -machine interaction module with the microprocessor both way junction for input control command shows the data of monitoring devices output, the acousto -optic warning module is used for sending the acousto -optic warning signal under microprocessor's control. Monitoring devices adopts hall sensor measuring current's induced magnetic field, obtains the size of electric current indirectly, and dynamic i