Device for leveling ground e.g. before construction of building, has reading level indicator placed between sighting level indicators and comprising telescopic rod whose upper end is provided with frame having central traversing window

摘要

The device (1) has two sighting level indicators (2, 7) comprising telescopic rods (4) whose upper ends (5) are provided with display elements (6), respectively. An intermediate reading level indicator (9) is placed between the sighting level indicators. The intermediate indicator has a telescopic rod (10) whose upper end (11) is provided with a frame (12) having a central traversing window (13). The frame is provided with graduations (16) and divided by a horizontal median, where the graduations provided on the frame increase on both sides starting from the median.