Makesafer PTC temperature-controlled sensors are special used for overheat alarm and protection which are made of mini heat-variable resistors. The controlled temperatures range from TK30 degree to TK180 degree There is a 5 degree interval between the controlled-temperature TK according to the specification. One and six cores sensors are available, according to customers’ requirements. Advantage: Small size, endurance strength, good stability and excellent sensitiveness. All the technical criteria have reached the level of the same products in the world. They are all DIN 44080, DIN 44081 standard.