Topcon DL Series Digital Level


Unparalleled automated accuracy.  Say goodbye to error-prone and laborious manual readings with the Topcon DL-500’s “Wave-and-Read” technology.


The DL-500 range of digital levels from Topcon strips away the main sources of errors (humans!) in leveling by integrating RAB (Random-Bidirectional) staff encoding and “Wave-and-Read” technologies.

Single-button operation
Sub-millimetre height accuracy
Advanced RAB code technology
Pre-installed measurement programs
Inverse staff reading

With two models available to satisfy accuracy requirements, the DL-500 range of digital levels have been designed for use in challenging or hostile environments where errors cannot be allowed to happen.

The exclusive RAB coding technology allows for use in low light conditions or bright sunlight, and with intuitive on board logging software, accurate height determination really is as simple as point and measure.


Topcon Logo

Telescope                          DL-502         DL-503
Magnification                     32x               28x
Objective Aperture            45 mm          36 mm
Resolving Power               3 in.              3.5 in.
Field of View                                1°20”
Minimum Focus                           1.5 m
Image                                          Erect
Stadia Ratio                                 100
Compensator (Magnetic Dampened)
Working Range                             ±15
Height Measurement
Accuracy (standard deviation for 1 km double run leveling)
Electronic Reading:
Invar Staff                            0.6 mm         0.8 mm
Fiberglass Staff                   1.0 mm         1.5 mm
Optical Reading                   1.0 mm         2.0 mm
Measuring Range                      1.6 to 100 m
Physical and Environmental
Dust/Water Rating                          IPX4
Operating Temperature           -20ºC to 50ºC
Storage Temperature              -40ºC to 70ºC
Operating Time                      Up to 16 Hours
Weight                                            2.4 kg
Size                                   257 x 158 x 182 mm

Download Topcon DL Series Digital Level Brochure