¡ò High reliability, cost-effective; ¡ò Selection of high-performancenfrared transmit / receive geminate transistors; ¡ò New parasitic light wave filtering face-piece, effectively filter out parasitic light interference; ¡ò Optimization circuit design, products with higher cost-effective; ¡ò Strong lightning protection design; ¡ò Installation and debugging, simple and convenience; ¡ò LED status equipment, easy to install and detect;
