Road Alert Message Sign Kit includes: 40" LED sign, RA-USB controller with USB touch pad programmable, road alert LED text message sign system displays text and symbolic information, solid state LED design ensures durability against road stock and vibration providing extended lifespan. Available colors: red, blue and amber. Motorized version: RA-R40UM. Non-motorized version: RA-R40U.
RA-R-40 Owners Manual