1. High density of integration;

2. Low power consumption, long life-expectancy and high reliability.

3. Anti-jamming;

4. Low load factor in operation;

5. Adopting the special voltage regulator invented by our company.

6. Operated through the center controller; user-friendly;

7. Memory: 200 lines;

8. Scrolling effects of the information; 48 English letters or 24 Chinese characters can be displayed at one time;

9. Mapping function between lines.

10. Information is edited through software on the computer;

11. SOS alarm system.

12. Languages of all the countries can be displayed.