Reader Mono The new line of readers is a generation of CCTVs, characterized by a revolutionary design, the most advanced techniques and easy-to-use operation. The Reader Mono offers optimal possibilities for magnifying newspapers, books, maps, photographs, etc. The Reader Mono uses a monochrome screen of 43 cms (17 inches) which is available in black/white, paperwhite, green or yellow. Two large knobs control magnification and focus. Positive/negative and brightness/contrast are controlled by one single knob.