... proof level IP67 3. Video recording 3.5" 8.2mm Waterproof Night Snake Inspection Endoscope Borescope Tube Camera DVR ... for use in surveying pipes,equipments,furnishing installation,underwater viewing,parts assembly,construction sites,workshops,laboratories,education,wildlife ... -reach areas,etc. This 3.5" Color LCD Video Inspection Camera use optoelectronic technology to investigate hard-to-reach ...