Fourth Meridian
SDi
Laser measurement. Total-station heritage.
An RTK laser measurement system whose integrated laser module and Stellar Cameras measure hard-to-reach points even in tough conditions — offered on fmgs.ca as a complete system with data collector, survey pole and field software.
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Shoot the laser. Get the coordinates.
LaserFix pairs a large signal-receiving sensor with distance-measuring technology heritage from total stations — under 2 cm within 5 m and 3 cm within 10 m, on points you never have to occupy.
Stellar Cameras see in the dark.
Where ordinary cameras wash out, the Stellar Cameras keep images clear and bright — stakeout and LaserFix stay accurate in the dark, not just at noon.
AR that hands off smoothly.
Generation 2 Fusion AR starts on the front camera for direction and distance, then shifts to the bottom camera as you close in — one click to activate, all the way onto the point. EZtilt 2.0 initializes faster and holds fix at wider tilt angles.
In detail.
The SDi is a solution for RTK laser measurement, built for precision and versatility in geospatial work. Its integrated laser module, paired with Stellar Cameras, measures hard-to-reach points even in tough conditions — points you never have to occupy.
The SDi system comprises the SDi RTK GNSS receiver, a data collector loaded with the Field Master Survey Android App, and a survey pole.
Laser Measurement
LaserFix
LaserFix adopts a large signal-receiving sensor and distance-measuring technology with heritage from total stations. Shoot the laser at the point and get its coordinates: accuracy of less than 2 cm within 5 m and 3 cm within 10 m, on points that are hard to reach or unsafe to occupy.
Stellar Cameras
The Stellar Cameras perform in dark environments where ordinary cameras wash out. Whether stakeout or LaserFix in the dark, they deliver clear and bright images so you can manoeuvre accurately, not just at noon.
Stakeout and Tilt
Fusion AR Technology, Generation 2
Dual cameras on the receiver improve accuracy and directivity during AR stakeout. The front camera first shows the direction and distance of the point to stake out; as you come closer, it smoothly shifts to the bottom camera for a more accurate direction, until you pin the right point. All operations require only one click to activate.
EZtilt 2.0
Version 2.0 of EZtilt adopts an upgraded IMU unit and an improved algorithm especially tailored for LaserFix. It is faster to initialize, with better accuracy and reliability, and holds fix at a wider tilt angle.
Tech Specs
- LaserFix accuracy
- <2 cm within 5 m; 3 cm within 10 m
- Cameras
- Dual stellar cameras for low-light imaging
- Stakeout
- Fusion AR (Generation 2) dual-camera AR stakeout
- Tilt
- EZtilts 2.0 IMU tilt compensation
- Rental kit
- SDi RTK GNSS receiver, data collector with Field Master Survey app, survey pole
Keep exploring.
See the SDi on your own site.
The fastest way to judge it is in your own field conditions. Book a demo and our team will bring it to you — or ask about rentals.