Excellent Solution For Surveying


DL-502K/503K Electronic Digital Level

Quick. Easy. Reliable. Electronic Digital Level

• One button triggers measurement and data storage
• 0.6 mm/0.8 mm height accuracy
• “Wave-and-Read” technology
• Pre-installed measurement programs
• High accuracy height difference measurement
• Inverse staff reading for ceiling height

Digital technology speeds up all leveling tasks
The Topcon DL-500K Series digital levels maximize work efficiency and minimize human error, providing consistent measurement precision and speed, regardless of operator skill.

Incorporating cutting-edge Random-Bidirectional (RAB) coding technology, an optimized digital processing algorithm, the DL-500K provides exceptional measurement accuracy, stability and speed, under a variety of environmental conditions. Even when the staff surface is partially shaded, or in dim lighting conditions as low as 20 lux, a single button triggers measurement and the DL-500K instantly provides reliable results.

The world’s first “Wave-and-Read” technology provides an additional survey style option that allows a rod operator to wave the staff forward and back,                                                                                           instead of keeping the staff plumb. This simpler method is faster, easier,                                                                                                 minimizes the fatigue and is just as accurate.

Internal memory and easy data transfer
The DL-500K stores the data for up to 2,000 measurements. MAGNET Office Tools software provides visual tools for post processing, adjustment, and customized reporting


Single button operation
After focusing on the staff, just press one button. The DL-500K reads height and distance, and stores data. Auto levels require you to read the graduations on the staff with your own eye, but digital technology eliminates misreading and reduces eye fatigue.


Maximum reliability field-proven compensator
Incorporating a field-proven pendulum compensator with magnetic damping system, the DL-500K provides the stability you need when working on busy roads or bridges subject to vibration.


Measures ceiling height Inverse staff reading
The DL-500K can read the RAB-code staff in the inverted position. This dramatically facilitates height measurement of ceilings, tree branches, road signs, bridges, tunnel crowns, and other structures.


“Wave-and-Read” technology
The DL-500K tracks the RAB-code staff when waved forward and back, and automatically reads the correct height. The reading is at the minimum when the staff stands vertically, automatically finding the least value of staff readings.


Practical measurement programs No need for calculators
On-board programs support various measurement routines such as elevation, height difference, ceiling height, as well as cut/fill and stakeout in horizontal distance.



Telescope DL-502K DL-503K
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 DL-500K Series Brochure