The Model 636-S steerable stainless steel pan-and-tilt inspection camera and crawler from TV Ferret is designed to inspect 6- to 36-inch pipes. The one- piece submersible unit has a solid tube end-cap design to prevent leakage. The 6-inch steerable crawler has a continuous knobbed urethane track for added traction. “It’s set up like a tank,” says company owner Rich von Ahn. “With a track system, you always have some sort of surface contact, whereas with a six-wheel design, you have gaps between the wheels. And if you have an offset joint you can maneuver over it better with the track.” Full
