The BSS-3 series GPS synchronized clock is a standard time display and transmission device that utilizes Global Positioning System (GPS) technology. The series of synchronized clocks are designed and manufactured for the time synchronization requirements of various equipment in the power system, such as monitoring, control, protection, and fault recording. They are designed in accordance with the specifications of the East China Power Grid Time Synchronization System, making them particularly suitable for applications that require high reliability in time synchronization systems.