A breakthrough in the size and capabilities of retroreflectometers is being claimed by Brazilian company Easylux with its new Autonomous Mini model. Retroreflectometers have been shrinking steadily over the decades, and a current model usually weighs about 8-10kg. However, Easylux’s model cuts the size and weight of the devices to just 2kg – “completely impossible to imagine two or three years ago”, said company founder Eng. Gustavo Felipe Paolillo. The new model is battery-powered and, once laid on a highw