Wohler, 6920, VE 400 HD Video Endoscope with HD Probe 0.22inch and 360° View.The Wohler VE 400 HD video endoscope is ideally suited for HD inspection of inaccessible cavities through smallest openings from Ø 0.24inch. Further areas of application are e.g. pre-wall installations, fireplaces, combustion chambers, connecting pieces, sinks or drain pipes, as the camera head is waterproof (protection class IP 72). With its Ø 0.22inch, the endoscope is also suitable for inspecting inspection openings and fire dampers.