Tianjin Youhan Security Technology Co., Ltd. is located in Hedong District, Tianjin City. It is a company that sells and installs weak current engineering and security equipment services. Since its establishment, the company has been committed to continuously strengthening itself in the field of weak current security projects, providing technical support and pre-sales and after-sales services to customers. We take customer satisfaction as our wish and strive to provide customers with reliable software and hardware products and application solutions. The company always adheres to the service tenet of "sincere cooperation, hard work, perfection, wholehearted dedication, creating technology, and serving enterprises". With integrity, we make friends all over the world and work together to create a smart community. The company is composed of technical personnel engaged in security and weak current engineering, who have profound knowledge and rich practical experience, and have designed and constructed a batch of high-quality security and weak current engineering projects. Our corporate purpose is to improve ourselves and compete in a healthy manner. We appreciate and support each other. To be a good person before doing things, to innovate and create the dream of the enterprise. Our corporate philosophy is to strive for perfection, do our best, and make friends with integrity from all over the world, working together to create a smart life. Main business: 1. Building intercom system, non visual building intercom system, color visual building intercom system, networked non networked visual non visual hybrid cloud intercom system. 2. Access control card management system, card swiping password access card reader, fingerprint facial recognition attendance access control machine, single door, double door, multi door, networked access control controller, access control power supply, exit button, various electric locks, door closers and other system supporting products. 3. Parking lot, unmanned self-service system, license plate recognition management system, intelligent channel management system, intelligent barrier gate, straight pole barrier gate, curved arm barrier gate, advertising barrier gate LED Display screen 4. Installation and renovation of five party intercom system for old elevators, installation of five party intercom system for new elevators, wireless five party intercom system for new elevators, wireless three party intercom system for elevators. 5. Time limited, frequency limited, and floor limited elevator card swiping system. 6. Large, medium, small, and type monitoring system design and construction. 7. WIFI full coverage in public places. WIFI full coverage service process: telephone communication, on-site investigation, scheme design and quotation, contract signing, on-site construction, completion acceptance, use and maintenance training, after-sales service