Chongqing Diaoran Photoelectric S T Co., Ltd. is located in the beautiful Jin Yun Mountain, adjacent to the river and close to the Southwestern University, within less than one kilometer away from the Beibei high-speed entrance, and 30 minutes drive from the International Airport and downtown. It is a company specializing in professional optical design and production of various lasers and laser range finder (instrument) development. We also dedicate to the research and application of optical, mechanical, electronic, laser technology, and the produce of the light, machines, electrical combined precision photoelectric instruments.