dual sides moving message display, for indoor mounting, popularly used in ... 7.62mm,dots matrx 7*40 dual-side display.3. LED display color optional: Red, Blue, Amber, RG Multi- ... indoor & semi-outdoor moving message display. Besides, we are available to supply led digital clock, led timer/counter, led digital temperature & ... feel free to contact us for your inquiry. led moving message dual sides display