1. The image can be easily viewed by many people on monitor at the same time.
2. Improve the working condition also can soften the tiredness caused by long time observation.
3. Integrated structure, easily operation, small size and can save space.
4. The magnification can be zoomed non-step.
5. There is “+” for purpose of positioning and measurement.
6. Easily equipment, it can be work properly by put it on a stable place.