360-Laser-Nivelliergerät, 4D, selbstnivellierend, horizontal und vertikal
Horizontal/Vertical Accuracy: ±1.5mm/7m. Laser class: Class 2 (IEC/EN 60825-1:2014)，<1mW. 2: Second, turn on the FD30 receiver and search the laser lines. When the receiver detects the laser lines, it will make "Beep" sounds.