TL-81 Tunnelling Laser
The TL-81 emits a laser beam as reference axis.
It has a horizontal and a vertical rotation axis system with clamp and fine adjustment knob for quick and exact fine adjustment.
The tunnelling laser can be used on its own or in combination with a traversing system. In this case it is advantageous to adjust the trunnion axis height to the surveying instrument that is to be used.
Range: up to 500m (high power version with laser class 3R).
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