The sensors can be widely used at those work sites which need overheat protection. When the sensors are fixed in those facilities that need overheat protection, they are able to keep the facilities from accidents and damages caused by overheating.

The sensors are the special ones used for overheat alarm and protection. They are made from the advanced technology introduced from abroad. PTC temperature-controlled sensors are made of mini heat-variable resistors. They are of small size, endurance strength, good stability and excellent sensitiveness. All the technical criteria have reached the level of the same products in the world.