- To measure horizontal distance, sloping distance and vertical distance between two points.
- To get the elevation of the remote object.
- To set the point at a predetermined distance along grid lined.
- To align the electronic plots or towers and columns of the industrial building.
- EDM instruments are classified according to the type of carrier wave employed.
- Instruments using light or IR waves are classified as electro-optical instruments.
- Instruments based on radio waves are generally called microwave instruments.
- These instruments are now obsolete within the surveying industry being replaced by total station technology.
Electronic distance meter