Topcon Electronic Digital Level DL-502 / 503 Surveying Instrument

DL-500 tracks the RAB Code staff waved back and forth, and automatically reads the correct height.
The staff reading becomes the minimum when it stands vertically. The DL-500 automatically finds the least value of staff readings.
This world's first technology allows for error-free readings of waved staffs, while dramatically reducing operator's eyestrain

High Accuracy! 0.6mm/0.8mm

 

Two models are available for different accuracy requirements.
DL-502: 0.6mm (Invar staff), 1.0mm (fiberglass staff)
DL-503: 0.8mm (Invar staff), 1.5mm (fiberglass staff)