It is widely used for anyone who needs to be able to measure directional indications, heights, vertical angles and slopes – all with great speed and accuracy.
The Tandem is used a lot in surveying and constructing in quarries and tunnels, especially when there are obstacles or depressions in the line of vision.
The Tandem is used a lot in surveying and constructing in quarries and tunnels, especially when there are obstacles or depressions in the line of vision.