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RTK Surveyor Logo

SparkFun RTK Surveyors are enclosed and ready to use GNSS receiver for millimeter-level positioning. No programming required!

Compare RTK Surveyors

What is an RTK Surveyor?


Amazing accuracy, low price

Using the powerful u-blox ZED-F9P, you can achieve down to 14 mm accuracy with GPS-RTK location at a much lower price than traditional surveyors.

Compatible with GIS applications

Using the built-in Bluetooth connection via an ESP32 WROOM enables the user to use the RTK Surveyor with their choice of GIS application on a phone or tablet.

Addition hardware supports

SparkFun RTK Surveyors are equipped with an microSD slot for data logging, USB-C for fast charging, external radio support, a Qwiic Connector and more.

Surveyor monopod

Compare RTK Surveyors


RTK Surveyor

RTK Surveyor

A versatile enclosed device that can be used either for centimeter accuracy positioning or as a base station.

Rover Base IMU Display Receiver Antenna Battery Application
u-blox
ZED-F9P
External 1000mAh Surveying or Base

RTK Express

RTK Express

We've taken everything that is good about the RTK Surveyor and upgraded with a display, a better battery and an accelerometer for digital leveling.

Rover Base IMU Display Receiver Antenna Battery Application
u-blox
ZED-F9P
External 1300mAh Surveying or Base

RTK Express Plus

RTK Express Plus

RTK Express Plus adds an internal IMU to combine real-time GNSS tracking with advanced sensor fusion. The result is accurate positioning even when GNSS is lost in tunnels, parking garages, etc.

Rover Base IMU Display Receiver Antenna Battery Application
u-blox
ZED-F9R
External 1300mAh Surveying

RTK Surveyor Kits are available!

We have 3 different kits available that contain everything you need to get centimeter level global positioning all packaged up in a handy carrying case. The kit includes a SparkFun RTK device, a high gain dual-frequency L1/L2 GNSS antenna, and all the cables and chargers needed for the field.

Find the kit you need

What's inside?


RTK Surveyor Kit

Smartphone WiFi Configuration

Use our simple app to quickly configure your device anywhere the job takes you. The RTK Surveyor acts as an access point to connect with your smartphone or tablet and allows you to tailor a wide range of settings including measurement rate, constellation choice, logging controls, and more.

Learn more

Helpful Resources for your RTK Surveyor


Learn how to hookup your surveyor, build a reference station or set up a rover base with our helpful resources below.

SparkFun RTK Surveyor Hookup Guide

December 3, 2020

Learn how to use the enclosed RTK Surveyor product to achieve millimeter level geospatial coordinates.

SparkFun RTK Express Hookup Guide

June 21, 2021

Learn how to use the enclosed RTK Express product to achieve millimeter level geospatial coordinates.

How to Upgrade Firmware of a u-blox GNSS Receiver

March 26, 2021

A few steps and you'll upgrade to the latest features on a u-blox GNSS receiver.

How to Build a DIY GNSS Reference Station

October 15, 2020

Learn how to affix a GNSS antenna, use PPP to get its ECEF coordinates and then broadcast your own RTCM data over the internet and cellular using NTRIP to increase rover reception to 10km!

Setting up a Rover Base RTK System

October 14, 2020

Getting GNSS RTCM correction data from a base to a rover is easy with a serial telemetry radio! We'll show you how to get your high precision RTK GNSS system setup and running.

What is GPS RTK?

September 14, 2018

Learn about the latest generation of GPS and GNSS receivers to get 14mm positional accuracy!

RTK Surveyor Accessories


Depending on your surveyor setup and needs you may need additional hardware to get going. Here are some commonly bought items for the RTK Surveyors.

GNSS Multi-Band L1/L2 Surveying Antenna (TNC) - TOP106

GNSS Multi-Band L1/L2 Surveying Antenna (TNC) - TOP106

GPS-17751
$124.95
7
1/4" to 5/8" Antenna Thread Adapter

1/4" to 5/8" Antenna Thread Adapter

PRT-17546
$4.95
Interface Cable - SMA Male to TNC Male (300mm)

Interface Cable - SMA Male to TNC Male (300mm)

CAB-17833
$9.95
RTK Kit Carrying Case

RTK Kit Carrying Case

PRT-18246
$24.95
GHR-04V to GHR-06V Cable - 1.25mm pitch

GHR-04V to GHR-06V Cable - 1.25mm pitch

CAB-17239
$1.95
Breadboard to GHR-04V Cable - 4-Pin x 1.25mm Pitch

Breadboard to GHR-04V Cable - 4-Pin x 1.25mm Pitch

CAB-17240
$1.95

Serial Telemetry Radio Kit - 915MHz, 100mW

WRL-15007
GNSS  Multi-Band L1/L2 Helical Antenna (SMA) BT-560

GNSS Multi-Band L1/L2 Helical Antenna (SMA) BT-560

GPS-17383
$84.95
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