Technology Advantage Electronic zoom Optical zoom Laser measurement Plug-in lithium battery Long working time, can be charged quickly and change at any time. Adjustable Lightness GTQV106 Wireless HD Pipeline Periscope via telescopic rod,Take the 2MP HD camera with its own high light source and put iti nside the pipe or industrial container, the lens can be 360 degree rotate,180 degree flip, focusing, zoom to inspect hidden space and high-risk conditions with recording. Support electric one key defogging function. HD Rotate Camera DN600 2MP,With zoom function. Laser measurement Able to judge the location of defects. Rotate flip Working temperature Application Mainly used in municipal (industrial) drainage pipes, water pipe, integrated pipe,Tunnel Portable and easy to install.