1 centimeter precision... made simple

Affordable GPS/GNSS RTK receivers for the mass market

Choose your form factor

Our products output the position in NMEA or UBX format. But through which interface do you want to receive this position? Check the table below and choose the form factor that better fits your needs.


Starting 199€

  • The smallest and lightest
  • 41x28mm and only 7.8g
  • Based on u-blox ZED-F9P
  • Pixhawk compatible
  • XBee footprint for connection to motherboard
  • XBee socket for radio upgrades
  • RS232*, USB* and Mini PCI Express*
  • * Requires accessory


Starting 172€

  • The original version
  • 69x53mm and only 19.5g
  • Based on u-blox ZED-F9P
  • Pixhawk compatible
  • Arduino UNO/Mega compatible RasPi compatible
  • Rasberry Pi compatible*
  • XBee socket
  • USB
  • ZED-F9H & ZED-F9R variants
  • * Requires accessory


Coming soon

  • Single Board Computer (SBC)
  • 115x85 mm
  • Based on u-blox ZED-F9P
  • Up to 3x GPS for full RTK AHRS
  • Optional IMU
  • Programmable STM32
  • RS232, USB, Ethernet, Canbus
  • Configurable I/O
  • Optional IP67 enclosure
  • Optional: BT, WiFi, 868/900MHz, LTE
  • ZED-F9K & ZED-F9R variants

Build your own base station

RTK GPS/GNSS technology needs a base station that generates correction data, for the rovers to achieve centimeter lever accuracy. If you don’t have access to an online RTK correction service (NTRIP), you can build you own base station with one of our boards, as all our boards can be configured as rover or as a base. But how will you connect the base and the rovers? Choose one of our radio links to make your life easier.

Medium Range radio

Available now

  • Up to 1'000m LoS (Line of Sight)
  • Point-to-point communication
  • 2.4GHz global solution

Long Range radio

Available now

  • Up to 10km LoS
  • Multirover functionality
  • Variants for Europe, North America and APAC

eXtra Long Range radio

Available now

  • Up to 50km LoS
  • Multirover functionality
  • Variants for North America and Australia

or connect to your neighbouring NTRIP service

If you have already access to an RTK correction service (NTRIP caster), you don’t need your own base station. Just connect your rover with a PC, or connect one of our add-ons to the XBee socket to make your life simpler.

Bluetooth 2.0

Available now

  • Bluetooth 2.0 serial port service (SPS)
  • Use your favorite app in your phone, tablet or PC wirelessly

WiFi NTRIP Master

Available now

  • NTRIP client/server/caster
  • 2.4Ghz WiFi
  • Available as OpenCPU to write your own code

4G NTRIP Client

Available now

  • NTRIP client
  • 4G/3G/2G connectivity

too complex? Just get our literally plug & play RTK kits

If your use case makes it too complex to have access to a base station, or you simply don’t want the hassle of the base station installation, try our simpleSSR receivers with integrated RTK-SSR correction service.

simpleSSR Basic Starter Kit incl. 1 year SAPA Premium

Available now

  • Centimeter Precision out of the box
  • Coastal waters coverage up to 38km from the coastline
  • Variants for North America and Europe

Do you need more?

We also have other products and pages that might be interesting for you, just check them out!

And if you don’t find what you are looking for, contact us, we are also an engineering services company.

GPS RTK heading

  • Add GPS heading to all above products

Multiband Antenna

  • Find the antenna that better fits your needs

Online Consulting

  • Have a chat with one of our senior consultants