... /40M flexible cable,12 LED HOT SALE! WITSON Push Camera for pipe and wall sewer inspection with DVR feature, 20/30/40 ... With DVR Feature Item No.: W3-CMP3188DN (Backup and Playback through USB flash memory) Application Possibility:Pipeline, Drain, Sewer, Duct, Chimneys, Machinery ... -4/5"(W) x 1"(D)With USB DVR function for video and audio recording, snapshot. What’s included?Inspection camera with ...