Fortunately, for most scanners the accuracy and precision (noise) are often very similar values, so you could find that only one figure is stated in the scanner specifications.It’s worth mentioning that accuracy can also be described as relative or absolute accuracy.
Relative accuracy can be considered as an accuracy of two points in relation to each other, independent of other error sources. When you compare a distance between two points in your survey to the same distance in the real world you will get relative accuracy. We can think of relative accuracy as a combination of both scanner accuracy and precision.
Absolute accuracy, on the other hand, describes how well your survey is located in the real world. If you pick one point from your survey and compare its coordinates with the real-world coordinates of that point you will get absolute accuracy for this point.