We are offering industrial endoscope n-22e. n-22e integrates optics, precision machinery, electronic technology and micro imaging, and can be used to inspect the interior surface of pipelines with a diameter between 25mm and 150mm. unit- aluminum alloy casing against sunshine and dust, light weight and compact construction- 5-inch color lcd touch screen, 720*480 pixels, dov more than 160- 32gb memory capacity, usb 2.0 port, plug and play- 8000mah li-battery up to 8 hrs operation time- available for electric adjustment of light, focus and articulation of probe, and buttons. probe- diameter: 22mm, 120mm in length- working length: standard 20m/60m (extended length is available on request)- resolution: 0.48m pixels- fov: 150 forward view- focus: electric zoom- illumination: 2m beam distance, adjustable leds- working pipe diameter: 25 150mm- waterproof: ip67