1.With three lines of message 2.With large pitch of 11.43mm 3.Optional communication way: RS232, RS285, 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, sign can be easily mounted to wall or ceiling 7.Ability to display text 8.Ability to display graphic 9.Ability to display time 10.Ability to display countdown 11.Ability to display user logo 12.Ability to display temperature 13.Allows users make fonts and graphic by themselves 14.Available for single-color or multicolor 15.Delivers 28 messaging presentation ways 16.Five messaging moving speed 17.Ten messaging stop time 18.Offer password security 19.Brightness adjustable 20.Open protocol .