Topcon Millimeter GPS

Millimeter Precision that you have to see to believe!

For use with Motor Graders, Dozers, Dirt Trimmers, and Milling Machines

Millimeter GPS+ transforms GPS into the perfect tool for blue-topping and other fine tolerance work. With Millimeter GPS+, the days of lost productivity, using stringlines or running manually off of hubs, are over.

Millimeter GPS+ combines the advantages of laser (multi-user & high vertical accuracy) with GPS (multi-user & 3D) into one versatile and easy to use system. This patented technology improves grading accuracy up to 300% over existing 3D-GPS machine systems.

Unlike any other laser technology, the PZL-1 transmitter sends out a wall of light 33' tall and up to 2000' in diameter. Simply add the PZS-MC machine control sensor or PZS-1 rover sensor to your existing GPS+ system, and watch your GPS vertical accuracy shrink down to numbers you never imagined before. Need more coverage? You can link up to four PZL-1 transmitters for a total of 8000' horizontally and 132' vertically. Unlike with total stations, multiple machines and man rovers run off one transmitter, there is no limit!

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or call 855-289-1772 for a quote.

  • Patented technology combines advantages of laser and GPS
  • Large working range: up to 8000' horizontal & 136' vertical
  • Works with existing Topcon GPS+ systems
  • Control multiple machines and rovers at the same time
  • Very user friendly
  • Up to 300% more accurate than standard GPS
  • Increased productivity - fewer passes needed to reach finish grade
  • Lower investment - one system works for rough & finish grade
  • Grade to tighter tolerances and eliminate high-cost material overruns
  • Finish grade 24/7 even with minimal satellite coverage


  • GPS / GLONASS / Galileo ready Topcon's
  • G3 Technology About Stakeless Grading
  • "Sensor Freedom" a Topcon Exclusive
At the heart of the Millimeter GPSTM system is Topcon's Lazer ZoneTM technology. This revolutionary system brings together the simplicity of a rotating laser, the accuracy of a robotic total station, and the flexibility and multiple user capabilities of GPS, into one complete jobsite solution!
PZL-1 Positioning Zone Laser Transmitter

Operates similar to a standard rotating laser, but transmits a unique Lazer ZoneTM signal to provide a working range of 2000ft! Instead of a traditional flat plane, the PZL-1 provides an incredible measuring area of 33ft in height! You can even link up to four laser transmitters for use on large sites to cover a distance of nearly 8000ft with elevation changes of over 130ft! No more taking time out to reposition your laser. With the PZL-1, multiple rovers can use the same transmitter, even at different elevations for continuous production!

PZS-1 Positioning Zone Sensor (for Mobile Rover Applications)

Instantly computes precise vertical information from the PZL-1 laser transmitter. Using Lazer ZoneTM technology, the PZS-1 automatically determines elevation based on your job site control, so there's no need for a moveable mast or grade rod. Mount the PZS-1 to your range pole, where it receives the PZL-1 laser signal and wirelessly transmits data to your existing HiPer rover!

PZS-MC Positioning Zone Sensor (for Machine Control Applications)

Mount the PZS-MC to your grader or dozer to replace your machine-mounted GPS antenna and benefit from Lazer Zone technology. The PZL-1 transmitter can operate multiple PZS-MC equipped machines, providing continuous, high-speed, high-precision control throughout the job site! The smart Lazer ZoneTM technology can distinguish signals from different transmitters for hassle-free, precision grading.

For use with Motor Graders, Dozers, Dirt Trimmers, and Milling Machines.