LiDAR and RTK GNSS in One Package

The FJDynamics V4E GO is a SLAM-LiDAR scanner that utilizes a compact V4E-RTK GNSS receiver to provide precise spatial data for point clouds. This setup leverages the computing power of an iPhone 15 (or newer model) to handle the SLAM processing. Additionally, the V4E and V4E Pro models can be used independently of the SLAM-LiDAR system—paired with the Trion Survey software (Android)—to obtain precise positioning data, either via a traditional survey pole or a “laser survey pole” (available with the V4E Pro).

UNLIMITED POSSIBILITIES WITH THE “LASER SURVEY POLE” AND LiDAR TECHNOLOGY

The FJD Trion V4E Mini RTK receiver transcends the limitations of conventional GNSS receivers, offering a portable, convenient design combined with high measurement accuracy. Weighing only 320 g, the V4E Pro delivers centimeter-level positioning without the need for a survey pole, making it an ideal solution for surveyors and mobile professionals. Affordable and easy to use, it puts precise surveying capabilities within reach for anyone. The price includes Trion Survey—a versatile Android-based surveying application compatible with modern Android devices. FJD’s own dedicated controllers, such as the E600 and UA80, offer the added benefit of being resistant to water, dust, and freezing temperatures. There are two versions of the device: Standard and Pro. The difference is that the Pro model features tilt compensation (IMU) and a laser distance meter, which allows for laser-based measurements without the need for a range pole. With the V4E—paired with the V4E GO-LiDAR—you can generate point clouds of objects using an iPhone Pro.

COMPACT SIZE, HIGH PERFORMANCE, PRICE 899 EUR

It offers centimeter-level precision, with a static accuracy of ±1.5 cm. We have verified its actual accuracy on our own test course, and the V4E performs on par with larger units like the V10i and V10a. It supports 1408 channels and covers all GNSS constellations, including GPS, BDS, GLONASS, Galileo, QZSS, and SBAS. Weighing only 320 g, the V4E is highly compatible with popular correction services and supports NTRIP connections using RTCM 2.3, RTCM 3.x, and CMR protocols. Priced at 899 euros (excl. VAT; includes the Trion Survey software), the V4E Standard introduces a new price point for RTK GNSS equipment—without compromising on features. By utilizing the Android “mock location” function, you can also access precise positioning data in other applications, such as Karttaselain or Infrakit. NO POLE? NO PROBLEM.

The built-in IMU compensates for tilt angles of up to 30° (Pro version), meaning you don’t need to hold the device perfectly upright. This allows for an accuracy of ≤3 cm at a distance of 3 meters from the target—without needing to position a survey pole vertically, or even without using a pole at all, relying solely on the laser. Its integrated LiDAR rangefinder achieves an accuracy of ±3 mm at a distance of 10 meters, ensuring precise point targeting.

CAPTURE POINT CLOUDS WITH SCAN AND LIDAR OPTIONS

There are two ways to use the V4E as an RTK device in conjunction with LiDAR technology: either by using the built-in LiDAR found in iPhone Pro models, or by using a separate, dedicated LiDAR unit. The “SCAN” package utilizes the LiDAR sensor integrated into iPhone Pro models (for distances up to 5 meters), while the “LIDAR” package includes a handheld LiDAR scanner that captures 154,600 points per second at ranges of up to 50 meters, covering a scanning field of 70° x 360°. Compatible iPhone models include the iPhone 15 Pro, 15 Pro Max, or newer versions.

BUILT FOR ALL-DAY PERFORMANCE

Stay up and running throughout the entire workday. The V4E offers over 12 hours of operation and can be fully recharged in less than 3 hours. You can even keep the V4E running while charging it via a power bank, ensuring your work is never interrupted. With an IP67 rating for protection against water and dust, and resistance to drops from 1.2 meters, it is built to withstand demanding environments.

COMPREHENSIVE FILE FORMAT SUPPORT

In the Trion Survey software, you can use OpenStreetMap, Google vector or satellite maps, or WMS-format maps as background layers. When using the EPSG:3857 coordinate system, multiple background maps can be displayed simultaneously. You can overlay editable layers—such as AutoCAD (DXF) files, or vector data in SHP or XML formats—onto your background map. You can also import or save graphic libraries (e.g., DNE files). Furthermore, you can attach various media, such as images or audio, to your surveyed points. Naturally, you can also export surveyed points as text-based files.

FROM THE FIELD TO THE OFFICE – BOOST PRODUCTIVITY WITH THE FREE TRION SURVEY CLOUD AND COMPLIMENTARY UPDATES

Seamlessly connect your field and office teams. With the included cloud service—which complies with the stricter EU data security regulations effective as of autumn 2025—you can transmit data and project updates from the field in real time, accelerating workflows at both ends. No more waiting—just pure productivity. Share system parameters and define specifications, including coordinate systems, geoid models, and datum grid files. The cloud service allows you to transfer data, such as survey results or vector maps, from the field to the office.