... , 2.Easy to install, outdoor &indoor using 3.rs232 control system 4.We can OEM the function Led Digit Sign1, Digit height:8 ... ).3, Color: Red, Green, White, Blue, Yellow.4, Display numberals”0.1.2.3.4.5.6.7.8.9.dot”,Fraction ... the functions of controller according to your demand.(Time,Date,Price,Temperature,Digit etc.) Rs232 LED Digit Sign(Gas Price,Time/Date Sign )