Meet the MLT-JR Inspection Robot: a wheeled platform that can be used to inspect in areas with a ceiling height of only 5 inches. It was designed for a customer who needed to perform inspection in tight spaces. The controller has a 7″ LCD with DVR functionality.
Since the robot was designed to move in an area made of steel and concrete, it needs to be tethered (wireless not ideal in those conditions). More info is available here.