The Wöhler brand includes video inspection camera kits and accessories for indoor and outdoor duct and pipe inspection applications. With IP67 and IP68-rated pan/tilt/zoom camera heads, Wöhler products locate and record problematic blockage or pipe/duct wall defects. InterTest, Inc. is an official Wöhler USA North America distributor and consultant that provides customers with the best Wöhler visual solution.