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The APS-NR2 incorporates leading GNSS and wireless technology into a sleek and compact design. This provides an intelligent Network Rover featuring on-board configuration and extended operation time.

Based on a low-power and small footprint OEM GNSS receiver, the APS-NR2 offers robust RTK while consuming less power for longer operation time on battery power.

For easy configuration and status monitoring, the APS-NR2 features an on-board web interface accessible via Wi-Fi. This makes the APS-NR2 configurable from any device that has a browser and Wi-Fi, and with any operating system. Real time data is streamed over Bluetooth for a completely cable free operation.

A 3.5G Quad-band GSM/GPRS/EDGE + HSPA cellular modem supports reliable RTK network connectivity with an intelligent reconnect feature.

In addition to standard Li-Ion battery chargers and USB cable interface, the modern design includes on-board USB battery recharge.

Don't drop the call!

Don’t lose time with dropped calls. Your source of corrections is most secure with the APS-NR2.

Designed with dual cell phone antennae to optimize call retention


Despite its smarts on board and wireless technologies the APS-NR2 weighs less than 800 grams- it won't wear you out!!

Work all day!

The APS-NR2 charges from a USB port or computer so it can be easily refreshed for another days work. And the batteries and charger are non proprietary, so its easy and inexpensive to keep spares.

Use your existing tablet or phone

The APS-NR2 communicates with any device with wifi! So open a browser onto the NR2 and stream data into your tablet !!

Esri ready

Designed specifically for users of ArcGIS, to enrich their database with high precision positions.

...or Alternatively use Industry Leading surveying software like SurvCE, Field Genius or Digiterra.

Works in any Network

The APS-NR2 works within all types of RTK Networks.

The auto detect function selects the correction type!!

APS-NR2 Features

  • 132 Channel GPS + GLONASS + SBAS receiver
  • Integrated 3.5G Quad-Band GSM/GPRS/EDGE + HSPA Modem
  • Integrated Wi-Fi
  • Integrated Bluetooth
  • Web Interface configuration
  • Two Hot-Swap Li-Ion Batteries
  • 8 GB Memory
With Altus’s open architecture philosophy, users have the choice of data collector software such as Carlson SurvCE or MicroSurvey FIELDGenius, as well as their own custom developed software.

APS-NR2 Benefits


  • Connect via Wi-Fi with from any device for a web interface
  • Stream data via Bluetooth for wireless operation
  • Configure NTRIP from any Wi-Fi device


Easy Configuration

  • Simple entry of cellular and NTRIP parameters
  • Store the profile on-board for easy reload of all settings
  • Auto-connect on next power on
  • Auto cellular re-connect for dropped calls
  • View system status at anytime via web interface
  • Stream RTK data via Bluetooth to any device



  • Robust GNSS RTK performance
  • RTK accuracy 0.6 cm + 0.5 ppm
  • Fast cellular connection for NTRIP
  • Log raw data on-board, 8 GB memory


User Friendly

  • Lightweight system at <800g
  • Small size at 167 mm diameter x 69 mm
  • Full System Status via LEDs

APS-NR2 Specifications

Channels 132
DGPS H: 0.50 m, V: 0.90 m
RTK H: 0.6 cm + 0.5 ppm, V: 1 cm + 1 ppm
Static H: 2 mm + 0.5 ppm, V: 5 mm + 0.5 ppm
Output Rate 10 Hz
Latency <20 msec
Average Time To Fixed RTK <7 sec
Cold Start <45 sec
Warm Start <20 sec
Re-acquisition <1.2 sec
Integrated Bluetooth Quad Band GSM/GPRS/EDGE
850/900/1800/1900 MHz
Tri-Band UMTS HSPA, 850/1900/2100 MHz
Memory Storage 8 GB, internal
User Interface LED Panel:
Power On/off, Wi-Fi On/Off
Browser via Wi-Fi
Command & data via Bluetooth
USB Port 1 x 9-pin Lemo
Waterproofing IP67
Certification CE, FCC Class B Part 15
Internal Battery 2x3400mAh
Current Drain 1.0 to 1.5A, peak 3.5A
External Power Input 9 – 30 VDC
Weight 0.7 kg
Dimensions 167 mm Dia. X 69 mm
Operating Temperature -40 to +85 degrees C
Storage Temperature -40 to +85 degrees C
Shock/Drop 2 m

APS-NR2 Brochure