Precise Locating & Distance Display: Our 165FT sewer camera has a built-in 512Hz sonde transmitter for accurate location tracking. An on-screen distance counter measures the length of the cable in the sewer, enabling you to quickly locate problems when used with the locator (not included). Compatible Pipe Diameters: Straight Pipes: 0.99 - 5.90 in / 25 - 150 mm; Right Angle Pipes: 1.97 - 5.90 in / 50 - 150 mm. 10.1-Inch Large Touchscreen: Our 10.1-inch touchscreen allows for easy operations such as video recording, photos taking, and audio playback (via computer or headphone output). 1080P HD display provides vivid and clear inspection details ; 32GB SD card provides plenty of storage for photos/videos ; input keyboard helps record inspection datas, and the sunshade keeps the screen clearly visible even in bright sunlight. Self-Leveling Camera: Our 0.9-inch self-leveling camera ensures images are always upright, giving you accurate orientation of obstacles for efficient inspections