Boundary Surveys
Walk property lines with the V4E in hand. Mark corners, verify encroachments, collect boundary coordinates — no pole setup at every point.
FJD Trion V4E Mini RTK
★ Pocket-Sized RTK
FJD Trion™ · V4E Mini RTK
FJD Trion V4E Mini RTK.
No pole. No tripod. No problem. 320 grams of centimeter-accurate GNSS in the palm of your hand — 1408 channels, 12-hour battery, and less-than-5-second RTK initialization.
The V4E breaks every assumption about what an RTK receiver looks like. Hold it in your hand while walking a boundary. Set it on a fence post for a quick check. Clip it to a drone for PPK. At 320 grams, it goes where full-sized rovers can't — and delivers the same 8 mm + 1 ppm accuracy that professional surveying demands. The Pro version adds a built-in IMU for 30° tilt compensation and a LiDAR rangefinder with ±3 mm precision.
320g Handheld
1408 Channels
<5s RTK Init
12h Battery
IP67
No Pole, No Problem
Centimeter accuracy in your pocket.
Traditional RTK requires a pole, a bipod, a controller, and a heavy receiver on top. The V4E eliminates all of that. Hold it in one hand while walking a property line. Set it on a fence post. Drop it in a backpack between sites. The 1/4-inch thread mount lets you attach it to any camera tripod, vehicle roof rack, or drone integration plate.
Despite its size, the V4E tracks 1408 channels across GPS, BDS, GLONASS, Galileo, QZSS, and SBAS with the same sub-centimeter accuracy as full-sized receivers. RTK initialization takes less than 5 seconds. Battery lasts 12 hours. And IP67 waterproofing means rain, mud, and dust don't slow you down.
6×
Constellations tracked
20Hz
Max update rate
30°
Tilt survey (Pro)
±3mm
LiDAR @10m (Pro)
Small Size, Big Power
Four numbers that redefine what RTK looks like.
320g
Total Weight
Lighter than a smartphone. Fits in any pocket or belt pouch.
<5s
RTK Initialization
Fastest init in the lineup. Point, wait 5 seconds, measure.
12h
Battery Life
Full work day on one charge. USB-C charging in under 3 hours.
1.2m
Drop Protection
PC+ABS shell survives drops onto hard surfaces.
Key Features
Six reasons the V4E belongs in every toolkit.
FEATURE 01
Handheld RTK — no pole, no tripod, no setup time.
Hold it in your hand. Set it on a surface. Mount it via 1/4-inch thread. The V4E removes every piece of ancillary equipment from the RTK workflow. Walk a boundary, scout a farm field, check a grade, verify a utility location — all with centimeter accuracy and nothing but the receiver in your hand. For teams that move between many small tasks per day, the time saved on setup alone pays for the device.
0s setup
Power on → RTK fix in under 5 seconds
FEATURE 02
1408-Channel Multi-Constellation
GPS, BDS, GLONASS, Galileo, QZSS, SBAS — including B2b* and E6* via firmware. Same channel count as full-sized Hi-Target rovers. No compromise on signal tracking.
FEATURE 03
30° Tilt + LiDAR (Pro Version)
Built-in IMU compensates up to 30° tilt with ≤3 cm at 3 m. LiDAR rangefinder adds ±3 mm precision at 10 m for point targeting. No centering rod needed.
FEATURE 04
12-Hour Battery · USB-C
Full work day. 5V/2A USB-C charging from any smartphone charger. ≤3 hours to full. 1.2m drop-rated PC+ABS shell. IP67 waterproof.
FEATURE 05
BT + WiFi Connectivity
Bluetooth 4.0 dual-mode pairs with iOS/Android. WiFi 2.4G base station mode provides 300m local correction range. NTRIP support via RTCM 2.3 / 3.x / CMR.
FEATURE 06
Professional accuracy. Consumer simplicity.
8 mm + 1 ppm horizontal RTK. 15 mm + 1 ppm vertical. Less than 5-second initialization with greater than 99.9% reliability. Data output at 1/2/5/10/15/20 Hz in NMEA-0183 format — compatible with virtually every third-party GIS and survey data collection app on iOS and Android. Cold start under 30 seconds. Hot start under 5 seconds. Signal re-acquisition in 1 second. The V4E makes professional GNSS positioning accessible to anyone who can press a button.
8mm RTK
Same accuracy class as full-sized professional rovers
Technical Specifications
Every detail. Documented.
| GNSS Signal Tracking | |
| Channels | 1408 |
| GPS | L1C/A, L2P, L5 |
| BDS | B1I, B2I, B3I, B1C, B2a, B2b* |
| GLONASS | G1, G2 |
| Galileo | E1, E5b, E5a, E6* |
| QZSS / SBAS | L1, L2, L5 / L1C/A |
| Positioning Performance | |
| RTK (H / V) | ≤ 8 mm + 1 ppm / ≤ 15 mm + 1 ppm |
| DGPS (H / V) | ≤ 0.4 m / ≤ 0.8 m |
| Single Point (H / V) | ≤ 1.5 m / ≤ 2.5 m |
| RTK Init Time | < 5 s |
| Init Reliability | > 99.9% |
| Time to First Fix | Cold ≤ 30 s · Hot ≤ 5 s |
| Signal Re-acquisition | ≤ 1 s |
| Data Update Rate | 1 / 2 / 5 / 10 / 15 / 20 Hz |
| Time Accuracy | 20 ns |
| Velocity Accuracy | 0.03 m/s |
| Tilt & Laser (Pro Version) | |
| Tilt Survey | ≤ 3 cm at 3 m (up to 30°) |
| LiDAR Rangefinder | ± 3 mm at 10 m |
| IMU | Built-in (Pro only) |
| Communication | |
| Bluetooth | BT 4.0 Dual-mode · 5 m range |
| Wi-Fi | 2.4 GHz · Base station mode · 300 m range |
| Data Formats | RTCM 2.3, RTCM 3.x, CMR, NMEA-0183 |
| Interface | USB 2.0 Type-C |
| Power | |
| Battery Life | ≥ 12 hours |
| Charging | 5 V / 2 A USB-C · ≤ 3 h full |
| Power Consumption | ≤ 1.5 W |
| Physical & Environmental | |
| Dimensions | 182 × 53 × 53 mm |
| Weight | 320 g |
| Shell Material | PC + ABS |
| Mount | 1/4" thread internal interface |
| Operating Temperature | −20 °C to +60 °C |
| Charging Temperature | 0 °C to +45 °C |
| IP Rating | IP67 |
| Drop Protection | 1.2 m anti-drop |
Applications
Built for the tasks that don't need a full pole setup.
GIS Data Collection
Asset mapping, utility inventory, environmental monitoring, and municipal GIS — centimeter positioning with a device lighter than your phone.
Precision Agriculture
Field boundary mapping, soil sampling positions, drainage planning, and crop scouting — all without carrying survey equipment through muddy fields.
Quick Site Checks
Verify a grade, check a benchmark, confirm a utility location. The V4E is the receiver you grab when a full setup isn't worth the time.
Drone PPK Integration
Mount via 1/4" thread for drone-based PPK workflows. At 320g, the V4E adds minimal payload to small and medium UAV platforms.
Education & Training
Teach GNSS concepts with real centimeter-level hardware at a fraction of full-system cost. Simple single-button operation.
Frequently Asked
Common questions about the V4E.
What is the FJD Trion V4E Mini RTK?
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A 320-gram handheld GNSS RTK receiver that delivers centimeter-level positioning without a survey pole or tripod. 1408 channels, 6 constellations, 8mm+1ppm accuracy, less than 5-second init, 12-hour battery, IP67. Pro version adds 30° tilt survey and LiDAR rangefinder.
Do I need a survey pole with the V4E?
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No. The V4E is designed for handheld use. Hold it in your hand, place it on a surface, or mount via the 1/4-inch thread interface. This makes it ideal for boundary walks, GIS collection, agricultural scouting, utility inspections, and any task where carrying a full pole setup is impractical.
What is the difference between V4E and V4E Pro?
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The Pro adds a built-in IMU for 30° tilt survey (≤3cm at 3m) and a LiDAR rangefinder (±3mm at 10m). Same GNSS receiver, battery, IP67 build. Choose Pro if you need tilt compensation or laser point targeting; choose standard if you only need handheld RTK positioning.
What apps work with the V4E?
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Connects via Bluetooth 4.0 to iOS and Android. Works with FJD's field software and most third-party GNSS data collection apps that accept NMEA-0183 output (SW Maps, Field Genius, Mapit GIS, etc). WiFi base station mode provides 300m local correction range.
How does the V4E compare to full-sized RTK systems?
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Same 8mm+1ppm RTK accuracy and 1408-channel receiver as the Hi-Target iRTK5. Differences: no UHF radio (uses NTRIP/WiFi only), no base station capability, shorter battery (12h vs 24h), and no OLED display. The V4E is designed for rover-only use on sites with NTRIP/VRS coverage — not as a replacement for base+rover setups on remote sites.
What is the price of the V4E in Dubai?
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V4E pricing depends on version (standard vs Pro), accessories, and quantity. Contact Sicher 3D at sales@sicher-3d.com or +971 50 108 0764 for authorized dealer pricing. Volume discounts available across UAE and GCC.
Centimeter accuracy. Pocket-sized.
Talk to our sales engineers about V4E standard vs Pro, pricing, and multi-unit discounts for your team.