Hongtak (Chengdu) Electronic Co., Ltd. was established in 1995 at national hi-tech developing zone in Chengdu, Sichuan, China. Chengdu is the capital of Sichuan province and is the central city of the Western China. The Chinese government is carrying out Developing Western China strategy. Chengdu will surely be one of the most active cities in the following decades. Hongtak specializes in manufacturing and selling Automotive oxygen sensor, Tunnel fire monitoring and warning system, Limiting current oxygen sensor, and relevant Instruments and Analyzers. These products have been applied in many fields, such as vehicles, electric power, electron, medicine, tunnel, brewage etc., and commended by the consumers for good quality and best service. Hongtak has been awarded the Quality System Certificate for compliance with the standard ISO9001:2000 in 2003.