Compact RTK GNSS Receivers for Efficient Field Surveying FJD Trion V4e Series Choose between the FJD Trion V4e and V4e Pro to match your surveying workflow. Both deliver centimeter-level GNSS RTK positioning in a compact 320 g design, while the V4e Pro adds IMU tilt compensation and integrated laser measurement for faster pole-free point collection. Your browser does not support the video tag. One Series. Two Surveying Solutions. The FJD Trion V4e Series combines high-precision GNSS positioning with a lightweight, field-ready design. The standard V4e provides a compact solution for accurate RTK mapping and data collection, while the V4e Pro adds advanced tilt and laser measurement capabilities for more demanding surveying tasks. V4e vs. V4e Pro Feature V4e V4e Pro GNSS Channels 1,408 1,408 RTK Accuracy Centimeter-level Centimeter-level IMU Tilt Compensation — ✓ Up to 60° Integrated Laser Measurement — ✓ Weight 320 g 320 g Battery Life Up to 12 hours Up to 12 hours Protection IP67 IP67 STANDARD VERSION FJD Trion V4e Mini RTK Receiver The V4e provides a compact and efficient RTK GNSS solution for professionals who need accurate positioning without carrying a larger surveying receiver. With 1,408 GNSS channels and centimeter-level RTK positioning, it is designed for everyday mapping, field data collection, and precision positioning tasks. Designed for Efficient RTK Mapping The lightweight 320 g receiver is easy to carry throughout the workday. Its compact design, IP67 protection, and up to 12-hour battery life make it suitable for field environments where portability and reliable positioning are important. 1,408-channel GNSS receiver Centimeter-level RTK positioning Compact 320 g design Up to 12 hours of battery life IP67-rated protection Suitable for mapping and field data collection PROFESSIONAL VERSION FJD Trion V4e Pro Mini RTK Receiver The V4e Pro builds on the V4e platform with integrated IMU tilt compensation and laser measurement. Instead of requiring the receiver to remain perfectly vertical over every point, the V4e Pro allows users to collect points at different angles, helping improve efficiency when surveying difficult or hard-to-reach locations. IMU Tilt Compensation Built-in IMU technology enables tilt-compensated surveying without requiring the receiver to remain perfectly upright. The V4e Pro supports measurement at angles of up to 60°, helping users collect points more efficiently in real-world field conditions. 30° 3D error ≤ 2.5 cm 60° 3D error ≤ 3.5 cm Integrated Laser Measurement The integrated green laser allows the V4e Pro to measure points without placing the receiver directly over the target. This pole-free workflow is especially useful for corners, edges, obstacles, and other points that may be difficult to access directly. 60 m Maximum laser measuring range ±3 mm Laser ranging accuracy Green Class 2M laser V4e PRO Pole-Free Surveying for Hard-to-Reach Points Combining RTK positioning, IMU tilt compensation, and integrated laser measurement, the V4e Pro provides a more flexible way to collect points where traditional pole-based measurement can be inconvenient. Point & Measure Aim toward the target point and collect measurement data without positioning the receiver directly over the point. Measure at an Angle Tilt compensation helps maintain efficient data collection when the receiver cannot be held perfectly vertical. Reach Difficult Points Laser measurement helps capture points around obstacles, edges, and other difficult-to-access locations. High-Precision GNSS Performance 1,408 GNSS Channels 0.8 cm RTK Horizontal RMS* 1.5 cm RTK Vertical RMS* 12 h Battery Life 320 g Lightweight Design IP67 Protection Rating * RTK accuracy specifications are based on FJD Trion published specifications and may vary depending on satellite visibility, correction source, atmospheric conditions, baseline length, multipath, and field conditions. Built for the Field Both V4e versions are designed for professionals who need reliable positioning equipment that is easy to carry and operate throughout a working day. 320 g Lightweight Body Compact enough to carry easily between measurement points and field sites. Up to 12-Hour Runtime Designed to support extended field work with a single charge. IP67 Protection Built to withstand dust and water exposure encountered in outdoor work. 1.2 m Drop Resistance Designed to handle the demands of everyday field use. Applications Topographic Survey Collect accurate field points for terrain and site mapping. Road Surveying Capture points along roads, edges, and other infrastructure. Construction & BIM Support site measurement, positioning, and field data collection. Utilities & Public Works Measure utility-related points and infrastructure in challenging field conditions. Forestry & Agriculture Support precision mapping and location-based field data collection. GIS Data Collection Build accurate spatial datasets for mapping and asset management workflows. Technical Specifications GNSS Channels 1,408 RTK Accuracy - Horizontal 0.8 cm + 1 ppm RMS RTK Accuracy - Vertical 1.5 cm + 1 ppm RMS RTK Initialization < 5 seconds Initialization Reliability > 99.9% Data Update Rate 1 / 2 / 5 / 10 / 20 Hz IMU Tilt Compensation V4e Pro: up to 60° Laser Measurement V4e Pro: 0.03–60 m Laser Ranging Accuracy ±3 mm Battery 5,000 mAh Li-ion Battery Life Up to 12 hours Charging Time ≤ 3 hours Connectivity Bluetooth 4.2, Wi-Fi 2.4 GHz Dimensions 182 × 53 × 53 mm Weight 320 g Operating Temperature -20°C to 60°C Protection Rating IP67 Choose the Right V4e for Your Workflow V4e A compact RTK GNSS receiver for professionals who primarily need accurate positioning and efficient field data collection. Recommended for: GIS mapping Field data collection Agriculture mapping Basic RTK surveying Topographic mapping ADVANCED WORKFLOW V4e Pro An advanced RTK GNSS receiver with IMU tilt compensation and integrated laser measurement for more flexible point collection. Recommended for: Professional surveying Construction & BIM Utilities & public works Hard-to-reach point measurement Pole-free surveying workflows Precision in a Compact Form From everyday RTK mapping to advanced pole-free surveying, the FJD Trion V4e Series provides a compact solution designed around real-world field workflows.
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