Inspection Length: 500m(max) Other lengths can be customized. Safety lock Removable center device Damping spring Underwater Inspect Camera Centralizer HD image / Portable / High efficiency Wide angle camera Field angle:120° Electric focusing IP68 Waterproof High temperature (70°C) Advantages Megapixl,HD video and photo . View angle camera , super LED. Self contained ambient light. Can observe the borehole wall around (oblique borehole wall) and the flowing image. Downhole CCTV camera is widely used in engineering hydrogeology, observation of geological bodies in the borehole observation pile of all kinds of abnormal and defects, well maintenance, detection of damage, crack, dislocation, cavity, downhole falling objects and filter pipe hole blockage.It can also be used in underwater rescue,earthquake collapse life detection, underwater monitoring,aquaculture and other industrial applications. Parameter: Portable controller Camera Camera diameter Camera length Field angle Display character Speed regulation Governor (digital display) Focus/ Light Storage capacity Inspection line diameter Inspect depth Electric wire winder