Level Guard / Level Guard

Level guard is a safety device to test tunnels and low-lying pavement water level. During heavy rain, the tunnels and the low-lying roads and the low-lying bridges are easy to form water. When people focus on driving, predicting the wading depth in low-lying areas is very difficult, and thus prone to dangerous situations. However, after using the level guard. When the water rises warning lines, the water and the heating agent in the device chemical reaction that lead to high temperature. The high temperature will produce a lot of dense smoke by the fuse, so as to achieve the purpose of warning people not to go forward.