We are one of largest Chinese manufacturers of infrared sensors, UV sensors and applied devices of those sensors, located in Shanghai. Shanghai Institute of Technical Physics of the Chinese Academy of Sciences offers its achievements in Infrared & UV research, supplies its technology, facilities, and Appletn in charge of production, marketing and service. We have been developing and exploring new application markets of infrared and UV sensors depending on advanced equipment of manufacturing and managerial skills as well as 20 years of experience in producing and exporting. Our main productions in safety protection fields have alarm , infrared burglar detector, carbon monoxide detector, combustible gas detector and infrared color camera etc; automatic inductive productions have infrared automatic switch/lamp/faucet and automatic fragrance sender etc; The applied devices of UV sensors have UV toy, UV disinfectant rod and detector of UV lamp (tube) and so on. 　 Our geographic location, advanced management and outstanding product quality have earned us the loyalty of clients all over the world. We are doing our best to serve users. In the development of new types sensors and exploration of new application markets. Place your trust in our "Appletn" brand name.