Key Specifications/Special Features: 1.With large pitch of 15.24mm pitch 2.Optional communication way: RS232, RS485, TCP/IP and USB 3.Easy entry: PC or remote control entry 4.Far viewing distance and wide viewing angle 5.As one ready-to-install unit, sign can be easily mounted to wall or ceiling 6.Ability to display text 7.Ability to display graphic 8.Ability to display time 9.Ability to display countdown 10.Ability to display user logo 11.Ability to display temperature 12.Allows users make fonts and graphic by themselves 13.Available for single color or multi-color 14.Delivers 26 messaging presentation ways 15. 5 messaging moving speed 16. 10 messaging stop time 17.Offer password security 18.Brightness adjustable .