1. LED display.
2. Opening & closing with 4-6 digit personal codes and 6 digit master codes
3. Working modes for choice: Home users mode or Hotel users mode
4. 4 Low energy consumption: 4 *AA (1.5v) alkaline batteries included
5. 4 incorrect entries auto locking system
6. Emergency system: Computerized Emergency Unit / Mechanical emergency key
7. Optional code blanking function
8. Fully motorized double locking bolts
9. Pre-drilled fixing holes
10. Unique spray coating technique that ensures the case is rust free for 5 years
11. Audit trail of last 100 opening and closing can be read and print out
12. Optional rental function