Emlid Reach RS3—new flagship GNSS receiver with tilt compensation

Reach RS3 is Emlid’s new flagship RTK GNSS receiver with IMU tilt compensation. It was engineered to ensure survey-grade precision even at hard-to-reach points. Explore the capabilities of Reach RS3 and order your receiver from the Emlid online store.

Tilt compensation for unlimited survey scenarios

The new Reach RS3 allows you to survey at large tilt angles while still maintaining survey-grade accuracy. With tilt compensation, your workflow no longer includes checking the bubble at every point. Now you can speed up your data collection and stakeout. And take the pain out of surveying hard-to-reach locations such as building corners, obstructions, points on the roadway, at the edge of an excavation, or in the water.

Reach RS3 comes factory-calibrated and works right out of the box. Just start walking with the receiver or tilt it to initialize.

The receiver is also magnetically immune. It features IMU-based tilt compensation with no magnetometer on board, which means metal objects and electronics won’t affect the accuracy of Reach RS3.

Learn more about the specifications here.

Reach RS3 with tilt compensation works in every field scenario

Compatibility optimized for your workflow

Reach RS3 is a multi-band receiver that works both as a base and a rover. It gives you versatile options to receive corrections from CORS, another Reach, or a third-party base, so you can mix and match RTK receivers in your fleet. In addition to working over LoRa, the new Reach RS3 is also compatible with 450 MHz radios.

NTRIP connectivity
Receive corrections from CORS, an NTRIP service, or any other GNSS receiver with Emlid NTRIP Caster. The range is over 60 km in RTK and 100 km in PPK.

Dual-band radio
Receive or send corrections between Reach receivers via LoRa radio. This works on line-of-sight distances up to 8 km and is perfect for areas without internet coverage for NTRIP.

You can also use UHF in the 450 MHz range to receive corrections from bases with radios that transmit RTCM3 over TRIMTALK 450S (trademark of Trimble Inc.). This workflow requires an additional 410-470 MHz antenna that you can buy at Emlid store.

Features for all survey scenarios

Get a fix in 5 seconds
Reach RS3 provides a centimeter-accurate solution in about 5 seconds and maintains robust performance even when the sky view is partially obstructed or the unit is tilted. The receiver tracks GPS/QZSS, GLONASS, BeiDou, and Galileo.

RINEX logging and PPP support
Reach RS3 records raw data in the RINEX format for post-processing. Logs are also compatible with OPUS, AUSPOS, and PPP services so that you can get high-accuracy results anywhere.

Built-in LTE modem
The receiver has a built-in LTE modem for a SIM card to send or receive corrections via NTRIP.

Up to 22 hours on 1 charge
Reach’s industrial-grade battery lasts for 22 hours of logging or 18 hours of work as an RTK rover with tilt compensation. For uninterrupted multi-day operations, simply plug Reach into a power bank.

Compact and rugged design
Reach RS3 is 126×142 mm in size, fits in a small bag, and weighs 950 g—less than a typical survey pole. The elastomer-coated polycarbonate body makes Reach RS3 impact-resistant and ready for even the harshest conditions. The receiver is rated IP67 dustproof and waterproof with an operating temperature range of -20° to 65° C (-4° to 149° F).

Explore all Emlid Reach RS3 features here.

The compact and rugged Reach RS3 in action

Full software suite for professional surveying

Reach RS3 comes with the Emlid Flow mobile app for iOS and Android. The free version allows you to manage all field-related tasks, including tilt compensation, receiver configuration, RINEX logging, points collection, and stakeout. The field app syncs with the cloud-based Emlid Flow 360 to prepare and manage your projects from a browser in the comfort of your office.

You can also choose to subscribe to the Emlid Flow Survey Plan to access additional productivity features: coding, linework, localization, and WMS/WMTS maps. A single subscription is valid for both Emlid Flow and Emlid Flow 360.

To get more out of your Reach receiver, try Emlid NTRIP Caster and Emlid Studio for free. Emlid NTRIP Caster is a handy way to stream RTK corrections from your base to the rovers. If RTK is not an option for your survey workflow, you can post-process your data in the free PPK software Emlid Studio.

Order Reach RS3 from the Emlid online store

Be the first to try the all-new Emlid Reach RS3. The receiver is available for shipping today, order now at the Emlid Store. You can also order Reach RS3 from our official dealers—find your local dealer here.

Order now


Congratulation to our Emlid Team for the new product. Very well done!

Does the IMU worked only with Emlid Flow app or it could be used with other apps by BT NMEA connection?


:slightly_smiling_face: !!!


Way to go Emlid, Thank you very much.


Terrific innovation and economy in one compact package.
Thank you Emlid - Again!!


Hi @l3technologycambodia,

For now, tilt compensation only works in Emlid Flow. But we’re considering the ways for integration with 3rd-party software too.


Noticed it has 6DOF vs 9DOF IMU? Guessing to get away from the magnetometer which would interfere by magnetic fields, metal, etc.

Slightly smaller battery also.

UHF very interesting.

Ok, can’t wait for RS3+ now!!! (L1 L2 L5?) :crazy_face:


Are you planning supporting tilt compensation in Emlid RS2 and RS2+? Given the hardware is already there… Does the IMU in the RS2 offer tilt correction like the Leica GS18? - #12 by polina.buriak

This is a long standing issue. It will be a nice move from you Emlid people to provide a new version of the firmware for existing users :slight_smile:

1 Like

Yes! MicroSurvey FieldGenius! I would assume MicroSurvey would have to implement it into their driver for BOTH Windows and Android. Let MicroSurvey know people!


Probably not. Would affect RS3 sales.

I see RS3 uses 6DOF instead of 9DOF IMU due to magnetic fields also.


Hi Fernando,

As Tim noticed, Reach RS2+ and Reach RS3 have different IMU sensors. The sensor used in Reach RS2/RS2+ is not accurate enough to compensate for the tilt. So, this feature is available only in the new Reach RS3.


Thanks for the clarification


I am assuming I can use my current RS2+ as a base and use the RS3 as a rover to take advantage of tilt compensation?

Can I also get a trimtalk radio to connect to the RS2+ to send corrections to the RS3 so that I can get a longer range in areas where I cant use emlid caster?


This you can do for sure

But not this , this is only in the new RS3 to talk to other brands or if you have an external radio on your RS2+


yes that will work

OK great

Yeah I meant getting an external trimtalk radio to work off the serial port of the RS2

1 Like

Hi Adnaan,

As David said, you can use Reach RS2+ as a base station for Reach RS3. If you’d like, you can also connect an external radio to Reach RS2+ to work with the Reach RS3 UHF radio.


Congratulations on the new EMLID Reach RS3! The innovation is expected from me as well. But I as a Bulgarian ask: will there be a possibility to buy at the price you indicated one of my old EMLID Reach RS2. And the other one just to keep using it for BASIC. My idea is a ROVER to use the EMLID Reach RS3 with the new tilt options.
THANK YOU in advance!

1 Like

Why did you sell the IMU capability of the RS2 when you had no intention of making it work?

I feel tricked.

1 Like