South DotLas Plus Hybrid GNSS + SLAM Receiver

• Hybrid GNSS + SLAM System – Combines GNSS RTK and SLAM-based laser scanning in one unit
• GNSS Channels – 1408 channels supporting GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS, IRNSS
• SLAM Scanning Rate – 200,000 points per second
• SLAM Range – 0.1–70 meters (70m @ 80% reflectivity)
• IMU Tilt Compensation – 0°–60°, calibration-free
• RTK Accuracy – H: ±8 mm + 1 ppm, V: ±15 mm + 1 ppm
• AR Stakeout Accuracy – Up to 3–5 cm (real-time), 2–4 cm (post-processed)
• Visual Stakeout Features – AirMeas, Super Stake-out, Magicalc
• Laser FOV – 360° x 59°, eye-safe Class 1 (IEC 60825-1:2014)
• Cameras – Dual 5 MP forward (for SLAM), single 2 MP downward (for AR)
• Connectivity – Wi-Fi, Bluetooth 4.2, NFC, 4G LTE, UHF radio (410–470 MHz)
• Display – 1.39" OLED touchscreen (smartwatch-style), resolution 454x454
• Data Storage – 512 GB SSD for SLAM + 4 GB for GNSS (expandable to 1 TB)
• Battery – iGrip unit, 3500 mAh / 50 Wh, runtime ≥2 hours, USB Type-C fast charge
• Protection & Environment – IP64, -20 °C to +50 °C operating temperature

• Hybrid GNSS + SLAM receiver with real-time data fusion
• 1408-channel GNSS engine with full-constellation tracking
• SLAM-based 3D scanning (200,000 pts/sec, 360°×59° FOV)
• Contactless measurement with AirMeas function
• Super Stake-out and Magicalc for reverse & offline measurements
• Up to 60° IMU tilt compensation, calibration-free
• Dual cameras and OLED touchscreen with voice control
• Wi-Fi, Bluetooth, NFC, 4G, UHF, and Web UI connectivity
• IP64 protection, rugged design, 2-hour operation with swappable battery
• Compatible with SurvStar & RobotSLAM field software

• DotLas Plus receiver unit
• iGrip battery handgrip (3500 mAh, 50 Wh)
• Charging adapter (Type-C, 30W)
• UHF radio antenna
• USB cable
• Transport case
• SurvStar + RobotSLAM license
• Quick Start Guide & user documentation

Can DotLas Plus work without GNSS signal (e.g., indoors)?

Yes, DotLas Plus is equipped with SLAM technology that enables it to operate effectively in GNSS-denied environments such as tunnels, basements, and indoor facilities. It relies on trajectory-based positioning and laser scanning to maintain accuracy.

What makes DotLas Plus different from a traditional GNSS RTK receiver?

Unlike standard GNSS receivers, DotLas Plus fuses GNSS and SLAM data in real time. This allows for continuous positioning and measurement even when satellite signals are obstructed, providing enhanced versatility in the field.

What is the accuracy of SLAM positioning?

SLAM-based positioning on the DotLas Plus achieves 3–5 cm accuracy in real time and 2–4 cm when post-processed (PPK), depending on the environment, scanning speed, and trajectory path.

How does “AirMeas” contactless measurement work?

AirMeas allows users to capture measurements from a distance by selecting points directly from the panoramic image and 3D point cloud. This is especially useful for measuring inaccessible or hazardous areas safely and accurately.

What is “Magicalc” and when would I use it?

Magicalc is an intelligent algorithm that provides position calculations when GNSS signal is interrupted. It uses the SLAM trajectory to continue generating accurate positions, which is ideal for obstructed environments or GNSS blackouts.

Is the device truly calibration-free for tilt measurements?

Yes, DotLas Plus features a calibration-free IMU that supports tilt compensation up to 60°. This enables surveyors to capture data without having to level the pole, saving time and improving efficiency on site.

How long does the battery last, and can it be replaced in the field?

Each iGrip battery provides approximately 2 hours of continuous operation. The batteries are swappable, so users can carry spares and replace them on site for uninterrupted fieldwork.

Does DotLas Plus support traditional RTK workflows (UHF, NTRIP)?

Yes, the device supports both UHF radio communication and 4G NTRIP corrections, making it fully compatible with existing RTK networks and base station setups.

Is DotLas Plus compatible with SurvStar and other software?

DotLas Plus comes pre-integrated with SurvStar and RobotSLAM software and supports standard output formats like RTCM, Rinex, and NMEA. This ensures compatibility with most GIS and survey platforms.

Can it export point clouds and survey data?

Yes, the device allows export of point clouds in formats like LAS, PLY, PTS, and E57. GNSS and SLAM data can be transferred via USB, FTP, or accessed remotely via WebUI for flexible integration into your workflow.