
Emlid delivers professional RTK & PPK GNSS receivers built for accurate, reliable, centimeter-level positioning without the high cost. Over 20,000 users trust our precision RTK GNSS gear for surveying, construction, drone mapping, GIS, agriculture, and geophysics. The all-band Emlid Reach RS4 Pro adds dual cameras with AR stakeout and visual measurement, the rugged RS4 delivers tilt-compensated RTK in tough conditions, and the portable Reach RX2 offers lightweight, IP68-rated RTK performance with multi-constellation support. All work seamlessly with Emlid Flow software for field data collection and survey workflows.
All-band RTK GNSS receiver with dual cameras and tilt compensation
Make any on-site workflow easier with AR stakeout, measuring from images, and high precision.
(ORDER HERE)

Ultralight RTK rover with tilt compensation for GIS mapping, design layout, and terrestrial scanning.

Set up a base station and collect GCPs with Reach RS3
Provides high precision for your UAV, regardless of cellular coverage or distance from urban areas. To collect ground control points, connect a second Reach RS3 or Reach RX2.

Reach RS4 Pro and Emlid Flow for accurate site work
Emlid Flow lets you work with CAD files and DTMs, collect and stake out points, calculate geometry, and ensure structures are positioned exactly to plan. With cloud-based Emlid Flow 360, your field and office always stay in sync.
Paired with Reach receivers, you get centimeter accuracy – even when tilted – and a battery that lasts all day, ensuring reliable performance in the field.

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

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.

No need to check the bubble
Tilt compensation
Calibration-free
We calibrate each unit 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, the RS3 provides 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.
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 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.
NTRIP
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.
Compatibility
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 radios
UHF 450 MHz
Rover
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
*TRIMTALK is a trademark of Trimble Inc.
Emlid Flow efficiently manages all field-related tasks, including receiver configuration, RINEX logging, data collection, and stakeout.
For iOS and Android. The basic features are available for free to all users. Upgrade your Emlid Flow and Flow 360 with a single subscription.

You can access your survey data via the cloud-based Emlid Flow 360, which 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.

Free post-processing software for macOS and Windows.
Learn more about Emlid Studio here.

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.
Tutorials
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 application engineers via E-mail.
Community
Join the Forum to get in touch with the Emlid team, get tips and advice, and connect with Emlid users from around the world.
Network RTK rover with centimeter accuracy Pocket-sized and lightweight receiver.
Works with NTRIP corrections.
When paired with the signature Emlid survey-pole, the Reach RX becomes the most simple measurement/locating tool on the job site. Centimeter-level accuracy that is fast, light, and so incredibly useful.
It is just that: the usability and the ease of use, that raises the level of productivity, for both skilled professionals and laypeople.
Install the ReachView app now and take a few moments to get familiar: [Android app – free], [iOS app – free].
Then, after unpacking your new Reach RX, you can be collecting your first point in 60 seconds.
just add NTRIP. Reach RX uses Bluetooth, allowing you to connect and start surveying in a few seconds. No settings to get wrong.
1. Enable Bluetooth on your device and find your Reach RX in ReachView 3.

2. Add network correction credentials

3. Collect your first point.

AVAILABLE AS A: Network Base and Rover kit Reach RX Kit Reach RX Team kit
Reach RX uses the Bluetooth LE connection to your phone/tablet to receive a feed from the Internet, via an NTRIP[?] caster, so you’ll need some NTRIP credentials.
But don’t worry if you don’t have NTRIP credentials at the moment, because you could
Accomplish your basic surveying goals with the ReachView 3 app
Import and export points from ReachView 3 in various formats, such as Shapefile, DXF, and CSV.
Whether you collect, then export the points; or import, then stake-out the points; or just do everything you need within ReachView, you are assured of a simple process with universal options for moving your data in and out.
You could use your favorite third-party surveying/GIS app as well. There are techniques to make your device get its location from Reach RX, which allows any app to work with the accuracy of Reach RX. Some third-party apps will be able to work directly with Reach RX as well.
Positioning with centimeter accuracy in RTK and PPK. For precise UAV mapping with less GCPs.
Reach provides very accurate positioning by connecting directly to the camera hot shoe port, which is synced with the shutter. The time and coordinates of each photo are logged with a resolution of less than a microsecond. This method allows GCPs to be used only to check your accuracy.

Compatible with Aeromappers fixed wing drones
Swappable with all other Aeromapper payloads
Also available as stand alone modules or full mapping kits