The real-time image tells you what the target looks like.
Due to the real-time image of the on-site camera, you can view, along with other measurement data, what your target looks like at that exact moment. In this way, you can combine visual observation with automatic measurement data without the need to actually visit the site.
In some situations, the camera image can also provide explanations for changes in other measurement data, if something extraordinary has happened at the site, which can be detected visually. At water sites, using an up-to-date camera image, you can see, for example, whether the river bed is frozen or whether there is water in the river bed during high water or whether it is flooded.