Topcon TP-L5 SERIES - Page 25

4. PRODUCT OUTLINE
17
Laser beam window
Laser beam emitted
from here
Grade axis mark
Laser grade starting point
Remote control receiving
window
Centerline LED
(TP-L5G/BG/A/B only)
Starting point of the laser line
Laser centerline mark
(TP-L5G/BG/A/B only)
Upper laser blocking hatch (TP-L5GV/AV only)
Blocks the upper laser beam by rotating