Shenzhen Huizhi Southern Technology Co., Ltd. (referred to as WITLINK) focuses on the development of elevator IoT software and hardware, as well as customized network transmission products. Our company's various network transmitters and elevator five party intercoms can transmit high-speed Ethernet signals through any two core cable of the elevator, such as elevator accompanying cable, five party intercom line, twisted pair cable, coaxial cable, and elevator 220V lighting cable; Support remote power supply; Support co linear transmission of network signals, intercom signals, and RS485 signals; Convenient construction and cost savings. Our company can provide advanced wired communication products and solutions for customers in the fields of elevator security, elevator control, IP five party intercom, etc; We can customize software and hardware development according to customer requirements, providing assistance for the informationization of elevator factories. The company currently collaborates with several well-known elevator companies in China, and its products have been widely used in elevator monitoring, multimedia playback, IP five party intercom, and elevator IoT. Because of focus, so professional!