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The Wöhler brand includes video inspection kits and accessories ideal 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.