In May 2003, several Chinese senior experts in magnetic sensors field jointly invest to establish “Nanjing AH Electronic Science & Technology Co., Ltd” by themselves’ technology and market advantages. The company is specialized in researching and developing, designing and manufacturing and selling Hall IC, Zero power consumption sensor and their application products. The management philosophy of our company is “Science, Development, Service”, our company applies itself in researching and manufacturing the sensors which owns China’s independent intellectual property rights.