Hanging fire extinguishing device is the storage containers, container valves, nozzles and other pre-assembled into a separate can hang (or fixed on the wall), the fire can be automatically or manually start, Blow fire extinguishing agent of a class of fire extinguishing devices. Conventional methods of electrical products start the blast. The unit of work is accurate, reliable, and injection time is short, rapid fire, construction, easy installation, project investment, do not take up the protection zone in the area. Mainly used in computer rooms, power distribution room, transformer room, file Heritage Room, a small depot, telecommunications centers, fire protection of small protection area.