Reach RS4 High-accuracy, even under canopy

Emlid Reach RS4

The Reach RS4 can track all available satellite constellations and frequencies, including the lower L5 and L6 bands, which are more resistant to multipath and interference. With 672 channels, it can track 40+ satellites at a time. These features ensure reliable performance and centimeter-level precision.

7mm + 1 ppm in RTK
672 channels
L1/L2/L5/L6
Fix in less than 5 seconds
GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC

16 hours

on one charge

Magnesium alloy body

offers exceptional strength

-40°C To +60°C

Operating Temperature

Protection Rating

Software for every stage of your project

The Reach RS4 comes with Emlid Flow, a comprehensive mobile and cloud solution compatible with both iOS and Android. It keeps your team aligned and your projects on track while supporting various site tasks.

Base and rover

NTRIP

Work in RTK with VRS or a single baseline CORS network in RTCM3 format. You can also connect another GNSS receiver as an NTRIP base using Emlid NTRIP Caster

Dual-band radio

UHF 450 MHz

Transmit and receive
Up to 2W (may require a license)
Compatible with Reach and 3rd-party receivers with TRIMTALK 450S support

LoRa 915 MHz

Transmit and receive
Up to 1W (license-free in North America)
Compatible with Reach receivers

Quick release mount

This mount is specifically designed for tilt compensation, eliminating backlash and securing the receiver firmly to the survey pole. Even a small amount of wobble between the device and the pole can compromise the accuracy when tilting. The quick-release system provides a fast and reliable connection for maximum precision.

Next-gen tilt compensation

The Reach RS4 delivers accurate results even at high tilt angles — for example, a 30° tilt still achieves 18 mm precision.1 The compensation mechanism activates with just a few moves and remains stable throughout the survey, saving time and avoiding the need for recalibration.

Coordinate your team

Invite team members, share projects, and manage access
Monitor field progress from the office and exchange data instantly
One workflow for the whole team, with data that is always up to date, a consistent interface, and no additional training required

Execute projects on site

Topographic surveys - gather terrain and elevation data accurately
Line & road surveys - stake centerlines and offsets with precision
As-built verification - check constructed structures against your plans
Stakeout & layouts - place points, lines, and markers directly in the field
Cut & Fill calculations - measure earthworks and stockpiles on site

Get in Touch

Give us a call or drop by anytime, we will answer all enquiries within 24 hours on business days. We will be happy to answer your questions.

Contact Information

We would love to hear from you! Our team is always here to help.

+1 866 300 9012
contact@measur.ca
Vancouver, British Columbia
Calgary, Alberta
Mississauga, Ontario
Montreal, Quebec

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