Shenzhen One By One Technology Co.,Ltd was established in 2016, which is a professional company engaged in the field of all-in-one cards. Our main business includes 4G access control , QR code access control , cloud access control , facial visual intercom access control, building cloud intercom, regular facial access control, fingerprint access control, card swiping access control,access control controller,access control power supply, exit switch, electromagnetic lock, channel gate, and various access control accessories, access control hardware, etc.

At the present time , two R&D centers and a high-quality R&D team of more than 50 people (accounting for 53% of the total number of the company) have been set up in Shenzhen and Taiwan. Our company specializes in the production and processing of different kinds of access control machines, and it also has a complete & scientific quality management system. We are recognized by the industry for our integrity, strength and high product quality.