1. Top numeral artificial intelligence system.
2. Open by password and sensor control system independence.
3. Zinc alloy material
4. Original creation of 3-15 digit dual code.
5. Adopt the electric-core lock which is the peak tech from Korea.
6.With knob, easy to handle
7. Fire proofed induce set inside toughly improve the safety factor.
8. Led keypad lighting in the night.
9. Alarm tone and low battery hint tone.
10. Double locking function inside and outside.
11. Anti high-voltage function
12. Can be connected with computer, suitable for hotel to manage.