SC403 is a RFID Access Control Terminal that enables a simple and easy control. It has a built-in auxiliary input function which enhances the flexibility to be connected with wired detector or emergency switch. With multi-verification methods by combinations of PIN, password and card, high level of security and flexibility are guaranteed. Moreover, the product supports USB flash drive for offline data management. Its convenience and adaptability allow it to be well deployed in residential housing, offices and any other public facilities.