Yuxin Optoelectronics insists on using original chips and components, which are durable and can replace gratings from various domestic and foreign brands. The design adopts a new type of modulated infrared light source, light synchronous scanning method, simple wiring, strong anti-interference ability, and easy installation. Capable of outputting signals for power outage stop, internal component failure stop, connection failure stop, and object intrusion stop. According to the working conditions, the four core grating can be freely interchanged left and right, with high-power transistor output and self recovery insurance output protection, making it safer.