Established in 2004, TONYU is a group company specializing in the development, production, sales, and service of electronic components, with a total investment of over 25 million yuan and an annual sales volume of 150 million yuan. Established in May 2009, Guangzhou TONYU optoelectronic technology co., LTD. (formerly Guangzhou Panyu Chaoyi electronics factory) is a professional manufacturer specializing in infrared components. The main products are photoelectric switch, infrared emission tube, photosensitive receiver transistor and so on. Products are widely used in: intelligent door locks, printers, industrial instruments, instrumentation, monitoring and sensing, light screen grating and other fields.