★ ACCESS LOCK: This is a professional door access control system. Perfect for home and offices, you can open the door with RFID key card, password, or RFID key card + password. Simple and stable ★ SECURITY ACCESS: Professional RFID card password access lock system, offers a method for controlling access safely and automatically, an ideal equipment for businesses, offices, factories, and communities security system. Support setting door-open mode and re-set function. ★ MULTIPLE UNLOCKING METHODS: Built-in ID card reader module, support using only card to opener door, automatically register. 3-6 digits password for door-open. Multiple optional unlocking types: ID card unlock, password, and ID card + password. ★ 1000 USERS: Support 1000 users. Integrated circuit techniques are applied to keep all the data from loss due to power failure, safe and to use. Switch freely between manager mode and user mode Support fast add or delete cards through the primary card. Support delay open, external connection with door bell. ★ AFTER-SALES SERVICE: We solemnly promise you that if you find problems with the product itself, you can contact us in time. we will definitely give you a reply in the first place and return it for you. please feel free to use it.