The viewer also called "document camera" or "visual presenter" is an interactive educational tool commonly regarded as the digital version of the overhead projector, profitable, it saves time and is easy to use. Simply connect the viewer to a projector, monitor, or an interactive whiteboard and put it on. All that remains to do is to place each object under the camera or to adapt it to a microscope. With Elmo viewers, you have a powerful zoom (up to 96 fold), you can magnify any small objects while maintaining a clear image with fidelity color with ease. With Aver, discover a range of flexible arm visualizers allowing you to capture images and videos of the highest quality!