Multiple groups of images are transmitted inside the hard pipe like fiber transmission images. The external material of the product pipe is stainless steel, which is anti-wear, and the working part of the pipe is waterproof and oil-draining; resistant to weak acid and weak alkali .
Optical lens parts : 1. Field of view: ≥85°; 2. Viewing angle: 0° 3. Depth of field: 2mm~50mm 4. Magnification: 60 times (positive image); 65 times (reverse image) 5.Illumination :working Hard tube Internal optical fiber light guide lighting, 6.Portable integrated light source, adjustable brightness 7.Observation mode Optical eyepiece for direct observation 8.CCD can be connected Camera and display, realize the function of taking pictures and videos, 9.Temperature of the hard tube working part -20ºC~70ºC, 10.Battery life ≥ 4 hours (single battery)