Pitch:16mm Pixel: 16x96 LED color:Red and Amber color LED life:100 000 hours Communication way:RS232,RS485,TCP/IP,GSM Modem or optec fibre. Pixel array of unit module:8x16 Pixels per square meter:2500 Drive mode:static scanning Best viewing distance:50-100m Kinds of color:8 color Refresh velocity:above 60 HZ Power:AC220V OR 110V DC 12V OR 24V Operation temperature:-10 to 80 celsius Operating humidity:10%-90% RH Transferring speed rate:9600BPS RAM Capacity:512K Enclosure:Metal case Pixel wavelength:RED 626NM,AMBER 592NM