As a node device, the electrical fire monitoring detector monitors leakage current and temperature, and uploads alarm information to the electrical fire monitoring equipment. When used together with electrical fire monitoring equipment, it can effectively ensure power utilization safety and prevent electrical fires.The electrical fire detector features sensor fault diagnosis, high alarm accuracy and strong reliability. It has a compact size and easy installation, and is widely applied to unit power supply systems in hazardous locations, high-rise buildings, public places and residential buildings.