HGGAOLI was founded in 1988. With more than 30 years of expertise in sensor industry, we have developed into a world-leading supplier of multi-functional sensors and PTC heaters. Our main products consist of NTC thermistors, PTC thermistors, sensors and PTC heaters for vehicles. With independent core technologies of chip manufacturing and packaging, we’ve achieved completely independent production of components and devices. HGGAOLI has built up one of the world’s largest manufacturing site for multi-functional sensors and PTC heaters in China, covering an area of 150000 square meters, with more than 2000 employees and 3 subsidiaries. We are supplier for numerous well-known enterprises across the world, including BYD, NIO, Siemens, Bosch, Samsung, Gree, Midea, Haier, etc.