... 7.62mm,dots matrx 7*40 dual-side display.3. LED display color optional: Red, Blue, Amber, RG Multi-color4 ... Communication optional: RS485, USB, TCP/IP5. Display Pattern: Text Clock Counting down or up6. Multi-method for displaying message, e.g. Cyclic ... & semi-outdoor moving message display. Besides, we are available to supply led digital clock, led timer/counter, led digital temperature & humidigy ...