Ver-Mac’s SP-710-DSL is a work zone digital speed trailer designed to notify motorists of reduced speeds in work zones when workers are present. The SP-710-DSL features our innovative V-Touch controller, a two-digit 18-inch white LED display, two 12-inch flashing beacons, and our JamLogic^® software. During non construction hours, the 2-digit white LED will display the posted speed limit when workers are not present. During construction hours, the 2-digit white LED will display the work zone speed limit and activate the (2) 12-inch beacons when construction and workers are present.