Weibo Electronic has developed a three-phase power comprehensive monitoring module, multi-circuit rail type energy meter and leakage current sensor for the power monitoring needs of the equipment room power equipment monitoring, air conditioning equipment monitoring, communication power protection, battery monitoring and management systems. A series of dedicated power isolation sensors, such as Hall sensors, AC transmission sensors and battery internal resistance sensors, are designed with high reliability, high precision, high isolation, wide frequency response and wide temperature range through specially enhanced EMC and lightning protection. Low power consumption and other features ensure the reliable operation of the telecommunication system.