... electricity, municipal, traffic, petrifaction, construction and other fields; Camera head. 1). Image sensor: 1/3 Sony CCD; Resolution: 480TVL; Illumination: ... 4). Double motors can turn left and right, the camera head rotates about 30°at the same time; 5). ... ). Display data: crawl speed, crawl distance, pressure factor, angle, image, operating interface, set interface, time etc. 3). Resolution: 1024* ...