Fire is a disaster caused by uncont

Fire is a disaster caused by uncontrolled combustion in time and space, and the robustness of modern buildings is strong. In the event of a fire, the entire building is like a large stove, stairs, various ventilation pipes, line shafts, they are all excellent fire-fighting cylinders, making it very difficult to fire. The consequences of fire have caused more and more harm to humans, society and nature, not only destroying material property, but also directly threatening people's lives and causing great harm to people's minds. Due to the large number of major security incidents caused by brutal fires, humans have not stopped studying timely detection and timely control after a fire, and fire alarm products have emerged. With the advancement of science and technology and the continuous improvement of people's needs, fire alarms are constantly improving in terms of function, structure and shape.