RTK GNSS receiver
with tilt compensation
Survey grade precision,
even in hard-to-reach spots

Multi-band base and rover
IMU tilt compensation
LTE modem
Dual-band radio

$2799 Buy

Accurate results even
with large tilt angles

Accurate results even with large tilt angles

The IMU-based tilt compensation in Reach RS3 enables you to make measurements with up to 60 degrees of tilt while still staying within 20 mm of accuracy.

Reach RS3 continuously measures and corrects tilt in real-time to keep you on target.

Survey and stakeout faster
No need to check the bubble

Effortless and robust
IMU tilt compensation


We calibrate the inertial measurement unit in each device individually at the factory, so you can get your Reach RS3 up and running right out of the box.

Immune to magnetic disturbances

Unaffected by magnetic fields, RS3’s IMU sensors provide robust tilt compensation even when working close to metal structures.

Quick initialization

Tilt initialization takes about 20 meters of walking or 10-20 seconds of tilting. Usually ready on the way from the car.

Rapid and Reliable GNSS receiver

Gets a fix in 5 seconds

Reach RS3 gets a centimeter-accurate solution in about 5 seconds. It maintains robust performance even when the sky view is partially obstructed, or the receiver itself is tilted.

GPS/QZSS, GLONASS, BeiDou, and Galileo

L1C/A, L2C, L1OF, L2OF,B1I, B2I, E1B/C, E5b

RINEX logging and PPP support

Record raw data in the RINEX format for post-processing. You can use our free PPK software, Emlid Studio, or any other software that supports RINEX. Logs are also compatible with OPUS, AUSPOS, and PPP services, so you can get highly accurate results anywhere in the world.

16 GB storage
160+ days of logging at 1 Hz

Up to 22 hours on 1 charge

Reach RS3 comes equipped with a built-in, industrial-grade battery that can endure up to 22 hours of logging or 18 hours of working with tilt in RTK. For uninterrupted multi-day operation, simply connect a power bank, just like you would with your mobile phone.

Charging via USB-C

Built-in LTE modem

Insert a SIM card into your Reach RS3 and let it broadcast or receive corrections via NTRIP.

Get corrections from CORS, Reach,
or 3rd-party base

Base and Rover

Work in RTK with VRS or a single baseline CORS network. You
can also connect another GNSS receiver as an NTRIP base using Emlid NTRIP Caster


Any receiver with RTCM3 support

Dual-band radio

LoRa 868/915 MHz
Base and Rover

Perfect for areas with no internet coverage for NTRIP. LoRa is used when connecting Emlid receivers over the radio.

Compatibility All Emlid receivers
with built-in radio

UHF 450 MHz

An option to mix and match RTK receivers within your fleet. You can configure your Reach RS3 to receive corrections from an existing base*.
You can also use a high-power external radio on your Reach base and connect with the UHF radio receiver in Reach RS3.

Compatibility Bases with radios that
transmit TRIMTALK 450S**

*Requires a 410-470 MHz
antenna, sold separately

**TRIMTALK is a trademark
of Trimble Inc.

Comes with software
for the field and the office

  • Emlid Flow
  • Emlid Flow 360
  • Emlid Studio
  • Emlid Caster

Emlid Flow efficiently manages all field-related tasks, including receiver configuration, RINEX logging, data collection, and stakeout.

The basic features are available for free to all users. Upgrade your Emlid Flow and Flow 360 with a single subscription.

Tilt Compensation Localization
Coding Data collection and stakeout
Base shift Base and rover setup
Background maps Logging
CSV, DXF, SHP export and import
Sync up to 3 devices

You can access your survey data via the cloud-based Emlid Flow 360. It allows you to prepare, manage, and export your projects from a browser.

The basic features are available for free to all users. Upgrade your Emlid Flow and Flow 360 with a single subscription.

Add WMS/WMTS layers Satellite map
Create custom survey codes libraries
Export and import of survey data
Project management and sync

Our free post-processing software for macOS and Windows.

Learn more about Emlid Studio here.

Kinematic processing Static processing
RTK Drone data processing Raw data analysis
Stop & Go with Emlid Flow

Connect up to 10 rovers to your base station via the internet or set up your own NTRIP network with Emlid Caster.

Learn more about Emlid Caster here.

Available for free and works worldwide
Works with Reach and other receivers with NTRIP support
RTCM3 and other correction formats support
Up to 5 bases and 10 rovers at the same time

and compact

126 x 126 x 142 mm
950 g


RS3 is waterproof up to a one meter depth. Silicone plugs completely seal and protect all connectors from water and dust.

Industrial battery

The Reach RS3 Li-Ion battery handles high and low temperatures well and over 2000 cycles of charging and discharging while maintaining its original capacity.
While others are hot-swapping batteries, your Reach just keeps working.

-20 to +65 ºС

We extensively tested Reach RS3 in conditions that simulate the coldest winters and hottest summers.


The body of the Reach RS3 is made of polycarbonate and coated with elastomer. The combination of these materials makes your Reach RS3 drop resistant and ready for the harshest conditions.

User reviews

Joe Lawson

The opportunities the tilt compensation opened up for us were fantastic. Building corners and walls are now a breeze, also for recording points that are just a bit too far under cover.

If you're in the industry, tilt compensation is something you have to try. Emlid has once again brought this feature within reach for a wide audience, I can't wait to see the creative ways people will start putting this to use on the forums or user groups.

Well done Emlid, let's see what you come up with next!

Ph: private archive

Rory Gillies

The Reach RS3 is a game-changer for my team. The tilt compensation allows accurate surveying of hard-to-reach points, and building corners and walls can now be shot directly without using offsets.

I am amazed at the accuracy, even with fairly large tilts! Emlid has done it again with the RS3, leading the way in an affordable, accurate, and versatile GNSS survey kit.

Ph: private archive

Tore Berthelsen

The RS3 with tilt compensation is here and I have been able to test out the beauty. The fact that you don’t have to hold the rod level for measuring or setting marks is so refreshing and makes the job much easier and faster.

This is a long-awaited feature that many users have been asking for over the years. Emlid has finally released its new model, the RS3 with tilt compensation. Those of us who work on the building site and facilities, in general, know that tilt compensation will make the job significantly easier.

Ph: private WhatApp video

Austin Chad Hill

A note about my experiences with the RS3: I love the RS3. It has all the well-established functionality of the RS2/RS2+ with the added benefit of tilt compensation.

On our project in Jordan this summer, it allowed us to collect points quickly, in tight places, in both our excavation units and as part of our larger-scale archaeological landscape survey.

This is a great addition to the Emlid lineup and will be extremely useful for users looking to speed up data collection or who are working in challenging environments.

Ph: private archive

Armando Martinez

We have had the opportunity to use the new Emlid RS3 with new features that have surprised us with their usefulness and easy handling.

Its small size and lightness, as well as its accessibility to NTRIP FIX services, make it one of the best on the market.As a professional architect and surveyor, this new tool gives me the security and guarantee of a point that I know is well located.

Today the RS3 along with all the innovations that Emlid has given it, becomes one of our most important tools within our toolbox.

Ph: private archive

In the package

Reach RS3

LoRa antenna

USB cable

Carrying case with a strap

Need help?


Watch quickstart guides and comprehensive feature overviews.

Emlid support team regularly updates all materials based on the most frequently asked questions and popular workflows.

Lifetime support

To get help with general questions and configuration, contact our application engineers via Facebook,  or E-mail.


Join the Forum and Facebook User Group to get in touch with the Emlid team, get tips and advice, and connect with Emlid users from around the world.


Do you want to receive software and product updates from us? Subscribe to our newsletter.



  • Dimensions 126 x 126 x 142 mm
  • Weight 950 g
  • Operating temperature -20 to +65 ºC
  • Ingress protection IP67


  • Autonomy 18 hrs as an RTK rover with tilt
    22 hrs of logging
  • Battery Li-Ion 5200 mAh, 7.2
    V37.44 Wh
  • Charging USB Type-C 5 V, 3 A


  • Static H: 4 mm + 0.5 ppm
    V: 8 mm + 1 ppm
  • PPK H: 5 mm + 0.5 ppm
    V: 10 mm + 1 ppm
  • RTK H: 7 mm + 1 ppm
    V: 14 mm + 1 ppm
  • Tilt RTK + 2 mm + 0.3 mm/°
  • Convergence time ~5 s typically


  • Radio LoRa

    Frequency range

    Transmit and receive
    868/915 MHz
    0.1 W
    Up to 8 km

    Frequency range
    Modulation type

    410–470 MHz
    TRIMTALK 450S**
  • LTE modem Regions
    FDD-LTE: 1, 2, 3, 4, 5,
    7, 8, 12, 13,
    18, 19, 20, 26, 28, 66
    TD-LTE: 38, 40, 41
    1, 3, 2, 4, 5, 6, 8, 19
    Quad-band, 850/1900
    900/1800 MHz
    SIM card Nano-SIM
  • LTE modem Regions
    FDD-LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13,
    18, 19, 20, 26, 28, 66
    TD-LTE: 38, 40, 41
    1, 3, 2, 4, 5, 6, 8, 19
    Quad-band, 850/1900
    900/1800 MHz
    SIM card Nano-SIM
  • Wi-Fi 802.11 b/g/n
  • Bluetooth 4.0/2.1 EDR
  • Ports RS-232, USB Type-C
  • *Requires a 410-470 MHz antenna, sold separately. **TRIMTALK is a trademark of Trimble Inc.


  • Corrections NTRIP, RTCM3
  • Position output NMEA, LLH/XYZ
  • Data logging RINEX, NMEA, LLH/XYZ, UBX
  • Internal storage 16 GB


  • Signal tracked GPS/QZSS L1C/A, L2C,
    BeiDou B1I, B2I, Galileo
    E1B/C, E5b
  • Number of channels 184
  • Update rates up to 10 Hz
  • IMU 6DOF