Model 880 RTB asphalt paver takes the continuous rubber track drive system to the next level, the company says. Standard features include power-actuated flow gates with material indicator lights, proportional controlled feeders with sonic feed sensors, automatic throttle, and hydraulic adjustment of auger height from 4½ to 9½ inches. The fumes-extraction system provides a more comfortable operator environment without inhibiting the view of the auger and head of material while paving.