01 Emlid
Reach RS4 Pro
All-band flagship with dual cameras & AR stakeout.
Twin cameras for visual positioning, IMU-driven tilt compensation, AR stakeout via Emlid Flow — the 2025 flagship for production surveyors.
Dual camTiltAR stakeout
Products / Emlid
Multi-band RTK without the legacy price tag.
Emlid's Reach series delivers cm-grade RTK across GPS, GLONASS, Galileo, BeiDou, QZSS and NavIC — with tilt compensation, IP68 ruggedness and free field software. Trusted by surveyors, construction, agriculture and drone teams worldwide.
1,408 ch
All-band, all-constellation tracking
7 mm H
RTK horizontal accuracy + 1 ppm
30° tilt
Pole-tilt compensation up to 30°
Free Flow
Field app, no per-seat software fee
Why Emlid
Same receiver accuracy. A third of the total cost.
Emlid built Reach on the principle that RTK shouldn't need a bureaucracy. A Reach receiver, the free Emlid Flow field app, the free Emlid Studio post-processing tool — and you're shooting cm-grade points the same afternoon you unbox it.
We hold local stock in Singapore, ship with SiReNT credentials pre-loaded, and run new crews through a 2-day certification course.
Local stock SiReNT ready 2-day training Repair in-region
The Reach family
Six products to choose from.
02 Emlid
Reach RS4
All-band RTK with tilt — the go-to topo rover.
Multi-band, multi-constellation RTK plus tilt compensation at a workhorse price-point. Best-seller for topo, design layout and site-engineering crews.
Multi-bandTiltIP68
03 Emlid
Reach RS3
Long-range base / rover, great battery.
The proven all-band RS-series — long battery, long-range Bluetooth/LoRa, excellent as a drone base station or rover pair.
BaseRoverLong battery
04 Emlid
Reach RX
Ultralight rover with tilt.
Smallest survey-grade Emlid — pairs with a phone or controller for GIS collection, mobile mapping and terrestrial scanning.
UltralightPhone-controlled
05 Emlid
Reach M2
Multi-band RTK module for OEMs.
Board-level GNSS for integration into drones, robots, buoys and custom platforms. UART/USB/Ethernet + PPS timing.
OEMUARTPPS
06 Emlid
Emlid Flow
Field app — free, no per-seat fee.
iOS / Android app for stakeout, point collection, CAD overlay, coordinate-system transforms and NTRIP setup.
iOSAndroidFree
Specifications
What Emlid Reach delivers in the field.
Short-form technical fact-sheet. Full datasheet per model available on request.
| Constellations | GPS L1/L2/L5, GLONASS G1/G2/G3, Galileo E1/E5a/E5b/E6, BeiDou B1/B2/B2a/B3, QZSS, NavIC. |
|---|---|
| Channels | 1,408 (RS4 Pro / RS4), 1,048 (RS3), 184 (M2). |
| Accuracy (RTK H/V) | 7 mm + 1 ppm H / 14 mm + 1 ppm V. |
| Accuracy (tilt) | ~2 cm at 30° pole tilt (RS4 Pro / RS4 / RX). |
| Correction sources | NTRIP (SiReNT, MyRTKnet, VRS), UHF radio, LoRa, base/rover, PPK. |
| Battery | 16 h RS4 Pro / RS4, 22 h RS3. |
| Ingress | IP68 (RS-series) and IP67 (M2 with enclosure). |
| Software | Emlid Flow (field) + Emlid Studio (PPK / post-processing) — both free. |
Integrated workflow
From SiReNT to Civil 3D in four steps.
01
Configure
Emlid Flow → set coordinate system (SVY21, MGRS, local grid), NTRIP credentials, stakeout plan.
02
Base
Set up RS3/RS4 on known point, or connect Flow to SiReNT / MyRTKnet VRS.
03
Rover
Walk the site with RS4 Pro / RS4 / RX — tilt lets you hit tight corners without plumbing.
04
Export
CSV, DXF, DWG, SHP, GeoJSON — straight into AutoCAD, Civil 3D, QGIS or Pix4D.
Applications
Where Emlid Reach earns its keep.
- Land surveying, cadastral boundary work.
- Civil engineering stakeout and as-built.
- Drone mapping ground-control points.
- GIS asset collection — utilities, telecoms, environmental.
- Precision agriculture and plantation mapping.
- Monitoring — subsidence, slope, pile heave.
- OEM integration — drones, AGVs, monitoring stations.
- Training and academic research.
Licensing & pricing
Single receivers to fleet packages.
Starter
Single RS4 + Flow
One-man topo crew. NTRIP corrections via SiReNT or regional VRS.
Most popular
Base + Rover set
RS3 base + RS4 rover. Independent of cellular coverage — ideal for rural sites.
Fleet
Multi-rover + OEM M2
Construction and drone-services firms scaling 5–20 receivers and custom-integrated M2 modules.
Request a written quote — we include NTRIP setup and first-day field support on every purchase.
FAQ
Common questions.
How does Emlid compare to Leica / Trimble / Topcon? +
Same RTK accuracy for a fraction of the cost because Emlid bundles software (Flow, Studio) for free — no $3,000/year field-data licence on top. Legacy brands still edge Emlid on ultra-long baselines and certain bureau-level compliance scenarios. For 95% of Singapore and regional survey work, Emlid is the better value.
Does Emlid work with Singapore SiReNT? +
Yes. Reach RS3, RS4, RS4 Pro and RX connect to SiReNT over NTRIP. We ship receivers pre-configured with your SLA credentials — no first-day setup.
Can I use Emlid receivers for drone RTK? +
Yes. Reach M2 embeds into drones (event-marker + PPS timing), and RS3 serves as a base station for drones with RTK autopilots like DJI RTK-2 or Autel RTK.
Tilt compensation — is it really accurate? +
At up to 30° tilt, Emlid RS4-series + RX hold ~2 cm accuracy. Saves 30–40% of field time by eliminating pole levelling on corner shots and façade work.
What about PPK (post-processed kinematic)? +
Full support via Emlid Studio — free software for PPK, base-shift, static baselines and RINEX export. Useful where real-time NTRIP is unavailable.
Pairs well with
Brands and solutions we bundle with Emlid.
Next step
Need RTK receivers this month?
We hold stock locally for Reach RS3, RS4 and RX — and ship with a pre-configured NTRIP profile for Singapore SiReNT.
Typical response · under 24h · SGT business hours