Just Point and Measure
Aim the green laser at the mark and record it from where you stand. FJD rates laser points at 2.5 cm within 3 m with up to 30° of tilt.
FJD Trion V4e Pro
Handheld Laser RTK Receiver (BYO Android Device)
- Point and measure with the green laser: no pole to level
- Tilt compensation to 60° (2.5 cm at 30°, FJD figure)
- 8 mm + 1 ppm RTK accuracy (FJD rating)
- Runs on your own Android phone or tablet
- Network (NTRIP) corrections only: no base station
- 320 g, IP67, about 12 h per charge
Some accessories shown are optional extras. See what's included
Network corrections only. The V4e Pro gets its RTK corrections from an NTRIP service (a paid network, or Geoscience Australia's free AUSCORS) over your phone's mobile data, so you need mobile coverage on site. It can't be used with a base station.
$2,499.00inc GST
Available to order
Complete Your Kit
- Free delivery Australia-wide. Usually delivered in 2–3 weeks.
- Talk to a GNSS specialist. Call 1800 769 858 or .
Overview
The FJD Trion V4e Pro is a 320 g handheld GNSS RTK receiver with tilt compensation and a green laser. Aim it at a peg, a post or a corner and record the point from where you stand, with no pole to level. This is the receiver on its own: bring your own Android phone or tablet and run FJD's Trion Survey app, which passes the receiver network (NTRIP) corrections over your phone's mobile data. It works with network (NTRIP) corrections only and can't be used with a base station.
The V4e Pro suits builders, landscapers, fencers and farmers who need to pick up and set out points without carrying a full survey kit.
Point, Measure, Move On
The built-in IMU handles tilt up to 60°, so you don’t hold the receiver plumb over the point. Aim the green laser at a peg, a post or a corner and record it from where you stand. FJD rates laser points at 2.5 cm within 3 m with up to 30° of tilt, and 3.5 cm at 60°. For stakeout, follow the beam to the design point and the app confirms when you’re on it.
The bright Class 2M green laser stays visible in sunlight and ranges from 3 cm out to 60 m. For conventional pole work, screw the V4e Pro onto a survey pole with the supplied adapter.
Runs on Your Android Device
The V4e Pro has no screen, modem or radio of its own. It pairs over Bluetooth with FJD’s Trion Survey app on your Android phone or tablet. Trion Survey runs on Android only, not iPhone. The app is free to download and starts with a trial; for the full features after that, you’ll need a permanent Trion Survey licence for your device. We can supply one, so just ask.
Corrections Through Your Phone
Trion Survey connects to an NTRIP correction service over your phone’s mobile data and passes the corrections to the receiver. You’ll need mobile coverage on site and an NTRIP login: a paid network subscription, or Geoscience Australia’s free AUSCORS streams. The V4e Pro doesn’t work off a base station. Keep your phone within about 5 m of the receiver.
No Android Device?
Choose the FJD Trion V4e Pro + E600 Controller Kit. FJD’s rugged E600 Android controller has Trion Survey ready to go and its own 4G for corrections, so there’s no licence to buy.
Grab and Go
At 320 g and 182 mm long, it fits in a jacket pocket. It’s rated IP67, survives 1.2 m drops and runs about 12 hours on a charge (less if the laser and tilt are on all day), then recharges in 3 hours or less over USB-C.
Videos
FJD Trion V4e Pro product overview
Key Features
Trion Survey on Your Phone
Pairs over Bluetooth with FJD's Trion Survey app on your Android phone or tablet.
Grab and Go
At 320 g it fits in a jacket pocket. IP67, drop-rated to 1.2 m and about 12 hours per charge.
What's Included
- FJD Trion V4e Pro handheld GNSS RTK receiver
- USB-C charging cable
- Screw adapter for survey poles
Full Specifications
| RTK Accuracy | Horizontal 8 mm + 1 ppm; vertical 15 mm + 1 ppm (RMS) |
|---|---|
| Tilt Compensation | 0–60°: 2.5 cm at 30°, 3.5 cm at 60° |
| Laser Point Accuracy | 2.5 cm (30° tilt) or 3.5 cm (60°) within 3 m |
| Laser | Class 2M green; 0.03–60 m range; ±3 mm ranging |
| GNSS | 1408 channels; GPS, GLONASS, BeiDou, Galileo, QZSS, SBAS |
| RTK Initialisation | Under 5 s; over 99.9% reliability |
| Update Rate | 1, 2, 5, 10 or 20 Hz |
| Corrections | NTRIP (RTCM 2.3, RTCM 3.x, CMR) through your device; no base station support |
|---|---|
| Software | FJD Trion Survey for Android (free trial; permanent licence available separately) |
| Bluetooth | 4.2 dual-mode; about 5 m range |
| Battery | 5,000 mAh; about 12 h (less with the laser and tilt running all the time); charges in 3 h or less over USB-C from any USB charger or power bank (wall plug not included) |
| Toughness | IP67; survives 1.2 m drops; -20 °C to +60 °C |
| Size and Weight | 182 × 53 × 53 mm; 320 g |
| Mount | 1/4-inch thread; screw adapter for survey poles included |
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