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

See our 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.

Compare RTK Surveyors

RTK Torch

This rugged, high-precision geolocation device has tri-band reception, tilt compensation, and millimeter accuracy; all protected inside of a waterproof housing.

Rover	Base	Display	Receiver	Antenna	Battery	Application
			Unicore UM980	Internal L1/L2/L5	7.2V, 6.8Ah, 48.96Wh with fast charge	Mobile surveying

RTK Facet

With an enclosed L1/L2 antenna, 6Ah LiPo battery, the RTK Facet is the easiest way for beginners and professionals alike to get started with hand held surveying.

Rover	Base	Display	Receiver	Antenna	Battery	Application
			u-blox ZED-F9P	Internal	6000mAh	Mobile surveying

RTK Facet L-Band

With an enclosed L1/L2/L-Band antenna, 6Ah LiPo battery, the RTK Facet L-Band utilizes corrections from u-blox's PointPerfect service broadcast from a geosynchronous Inmarsat satellite. No base station is needed, no external radio link, no Internet connection or RTCM corrections are needed to achieve RTK fix.

Rover	Base	Display	Receiver	Antenna	Battery	Application
			u-blox ZED-F9P & NEO-D9S	Internal	6000mAh	Mobile surveying with a single unit

RTK Surveyor

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

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

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

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

SparkFun RTK Reference Station

With just a few minutes of setup, the SparkFun Reference Station can be used as a fixed location NTRIP server, enabling RTK for rovers and even as an NTP server for equipment synchronization and an astoundingly accurate time base.

Rover	Base	Display	Receiver	Antenna	Power	Application
			u-blox ZED-F9P	External	Multiple Options	NTRIP or NTP Server

SparkFun RTK mosaic-X5

Unleash centimeter-level GPS accuracy with SparkFun's RTK mosaic-X5. Web interface, RINEX logging, WiFi / Ethernet, rugged design, multiple power options.

Rover	Base	Display	Receiver	Antenna	Power	Application
			Septentrio mosaic-X5	External	Multiple Options	Surveying, RTK Base & Rover, NTRIP Server & Client

RTK EVK

An excellent machine controlled GNSS receiver with three different failover fallbacks for power, network (WiFi, ethernet, cellular), and even RTK corrections.

Rover	Base	Display	Receiver	Antenna	Power	Application
			u-blox ZED-F9P, NEO-D9SM, LARA-R6	External	PoE (36–57V), USB-C, DC power (9–36V)	Surveying, RTK Base & Rover, NTRIP Server & Client

RTK Surveyor Kits are available!

We have 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?

Models will differ slightly. RTK Express shown above.

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