LDMs measure time-of-flight to determine distance. If you aim the laser on an angle, the time-of-flight from your target takes longer. The result is a higher measurement reading than the actual level distance to the target.
In Smart Horizontal mode, the DISTO uses an angle sensor to correct the time-of-flight measurement. The result is an accurate level measurement even if you have to aim over obstacles on the job site.
It's not always as simple as taking one shot to get the measurement you need. Sometimes you need to add multiple shots together, or subtract a negative space from a measurement. As you use the Add/Subtract function, the final result is displayed on the main line and the last measurement taken is shown above.
The Multi-functional endpiece folds out from the back of the DISTO and automatically sets the measuring point to either the rear of the DISTO or the tip of the extended endpiece.
This DISTO-exclusive feature ensures that the DISTO is measuring precisely from an outside corner (a very common use case). When fully extended, it is possible to measure from the back of openings as narrow as 20mm. Combined with Min/Max mode, there is no better method for determining the precise corner-to-corner measurement of a rough opening when installing windows or doors.