1. Standalone, single door control. 2. Low Priced, connect an electric strike and power supply and you're done 3. No Control Panels - Standalone Access Controller 4. Easy and simple to use 5. Has a flat back so it's easy to install on any flat surface 6. Operating Mode: Card only, Keypad only, Card with Keypad. 7. Card capacity is 500 users. 8. Programmable door release time: 1~250 seconds 9. Access code can be added or deleted by keypad management. 10. Built-in electric buzzer for audible card entry and programming. 11. Data is protected even after power failure. 12. Machined housing in high durable. 13. EM-ID thin card or keyfob optional