How accurate is Electronic Distance Measurement (EDM) for short distances?

Electronic Distance Measurement (EDM) technology is known for its high precision in measuring distances, even over short ranges. The accuracy of EDM devices can be within a few millimeters, making them suitable for tasks that require precise measurements, such as surveying and construction.

In applications involving short distances, EDM can take advantage of its technology that uses electromagnetic waves to calculate distance based on the time it takes for the signal to travel to a reflecting surface and back. This method significantly reduces errors associated with traditional measurement techniques.

While the effectiveness of EDM may vary based on factors such as ambient conditions and the specific device used, it is widely recognized for maintaining a very high level of accuracy across a variety of distances, not just long ones. Consequently, the statement that EDM is very accurate aligns well with its established performance in civil engineering practices.