Key Specifications/Special Features: 1.With three lines of message 2.Available with large pitch of 11.43mm pitch 3.Optional communication way: RS232, RS485, TCP/IP and USB 4.Easy entry: PC or remote control entry 5.Far viewing distance and wide viewing angle 6.As one ready-to-install unit and sign can be easily mounted to wall or ceiling 7.Ability to display text, graphic, time, countdown, user logo and temperature 8. Ability to display user logo 9. Ability to display temperature 10.Allows users make fonts and graphic by themselves 11.Five messaging moving speed 12.10 messaging stop time 13.Offers password securit 14.Adjustable brightness 15.Open protocol .