The Visual Multi-functional Detector is a comprehensive rescue equipment mainly used for environmental status detection, early warning and data transmission on the scene of emergency rescue. It integrates multiple functions such as infrared thermal imaging, visible light imaging, infrared temperature measurement, infrared distance measurement, wind speed measurement, gas detection, and leakage of electricity detection. The device has multiple communication functions such as 4G/5G, dual-frequency WIFI, and Bluetooth, and both Beidou and GPS satellite positioning are available, so that the data collected onsite can be transmitted to the backfield command center in real time.