The Mini Crawler PNT from Ratech Electronics is a self-propelled, four-wheel-drive, multi-conductor camera transporter. Its 12 super-bright LEDs with variable light intensity control have no problem lighting the way through pipe from 5 up to 30 inches. The stainless steel tractor provides pipe inspection for manhole-to-manhole inspections or small lateral pipes, navigating through difficult obstacles. Using the full 360-degree rotation pan-and-tilt camera, the user will be able to see defects and obstructions closely and in more detail. This same camera head is interchangeable with the head on the push camera system. The power and controls to operate the crawler are in a handy remote-control device. The unit comes with a manual lift and built-in 512 Hz sonde for locating purposes. 800/461-9200; www.ratech-electronics.com.