Emlid RS4 (pre-order shipping in December)

ALL PREORDERS INCLUDE A FREE QUICK DISCONNECT & PROTECTIVE BUMPER

All-band RTK GNSS receiver. Ultimate precision, even in the most challenging conditions.

High-accuracy, even under canopy

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

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.

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.

Base and rover

Dual-band radio

UHF 450 MHz

Transmit and receive
Up to 2W ( may require a license² )
Compatible with Reach and 3rd-party receivers with TRIMTALK 450S support³

 

LoRa 915 MHz

Transmit and receive

Up to 1W ( license-free in North America² )
Compatible with Reach receivers

Built to perform in extreme conditions

Magnesium alloy body

The RS4’s magnesium alloy body is as strong as it is lightweight. This material is often used for aerospace equipment and high-end electronics. It strikes the perfect balance of durability and lightness, making it ideal for use in tough conditions while remaining easy to handle.

16 hours on one charge

The RS4 offers an impressive battery life of up to 16 hours on a single charge. Use the USB-C for recharging or use a power bank for even greater flexibility. Designed to keep working as hard as you do, without interruption.

Waterproof

Thanks to its IP68 rating, the RS4 is fully dustproof and waterproof. Whether it's raining, snowing or a dusty construction site, the Reach RS4 will keep working.

-40 to +149 ºF

The Reach RS4 operates in temperatures from -40°F to +149°F. Its performance remains excellent in both freezing cold and scorching heat.