Message Board - Led Small (amber) for Hire in Blacktown and Sydney. The Variable Message Signs (VMS) manufactured by Data Signs are  Trailer-Mounted and Solar Powered. The signs include local and remote  programmable options and have inbuilt satellite GPS tracking. Built to  Australian Standards 4852.2:2009 and Australian Design Rules for Trailer  Manufacturing, the VMS boards can be used for traffic management on  road projects, as a general message display, or as a large size dynamic  electronic advertising sign.