The power repeater is a device that integrates power management and signal relay functions. Through stable voltage conversion and intelligent filtering technology, it efficiently distributes and adapts the input power to multiple terminal devices, while supporting synchronous signal transmission or remote control. It has built-in overload protection and lightning protection and anti-interference modules, suitable for base stations, outdoor monitoring, industrial automation and other scenarios, which can solve the problems of unstable power supply and signal attenuation over long distances, ensure the continuous and reliable operation of equipment in complex power environments, and take into account energy efficiency and system security.