- SHIPPING IN LATE DECEMBER
Emlid Base and Rover Kit
$8,870 tax excl.
Free shipping from Chicago (2-7 days)
Often Bought Together
Quick Release Adapter
$139
Reach RS4 Pro and Reach RS4 to use as a base and a rover
Build a powerful RTK GNSS setup with this versatile kit. Use the RS4 as a fixed base station and pair it with the RS4 Pro — which is equipped with dual cameras — as your rover. Together, they provide accurate positioning and effortless stakeout, making them ideal for surveying, mapping and advanced fieldwork.
Two Full-HD cameras
AR guidance for stakeout Measurements from images
High precision
RTK: 7 mm + 1 ppm
Tilt compensation: RTK: 2 mm + 0.3 mm/°
All-band support
GPS: L1C/A, L2C, L5
GLONASS: L1OF, L2OF
Galileo: E1-B/C, E5a, E6
BeiDou: B1I, B1C, B2a, B3I
QZSS: L1C/A, L1C/B11, L2C, L5
NavIC: L1-SPS Data, L5-SPS
Base and rover
915 MHz LoRa 450 MHz UHF NTRIP
Rugged and powerful
16 hours on one charge Magnesium alloy body IP68 rating Withstands temperatures from -40 to +65°C (-40 to +149ºF)
Explore all Reach RS4 Pro features and user reviews
Package includes
- Reach RS4 Pro
- Reach RS4
- 2x Carrying case
- 2x USB Type-C cable
- 2x LoRa Antenna 860-930 MHz
- 2x UHF Antenna 410-470 MHz
- 2x Quick release adapter
- Reach RS4 Bumper
- Reach RS4 Pro Bumper
Shipping from Chicago
2-7 days by FedEx or UPS
Specifications
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- SHIPPING IN LATE DECEMBER
![Reach RS4]()
![Reach RS4]()
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- SHIPPING IN LATE DECEMBER
![Quick Release Adapter]()
![Quick Release Adapter]()
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- SHIPPING IN LATE DECEMBER
![Reach RS4 Pro Bumper]()
![Reach RS4 Pro Bumper]()
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- Pre-Order
![Base and Rover accessories kit]()
![Base and Rover accessories kit]()
Specification
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Imaging
Image sensors: 1/2.6 in, CMOS, global shutter, Full HD
Field of view
Front camera: H: 64.6°, V: 42.8°
Bottom camera: H: 63°, V: 42°
Video frame rate: 25 fps
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Mechanical
Dimensions: 128.6 x 128.6 x 99.3 mm
Weight: 920 g (2.028 lb)
Operating tº: -40 to +65 °C (-40 to 149 °F)
Ingress protection: IP68
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Electrical
Autonomy: 16 hrs as RTK rover with tilt
Battery: Li-Ion 5000 mAh, 7.2 V, 36 Wh
Charging: USB Type-C (PD): 5V—3A, 9V—3A, 12V—3A, 15V—3A
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Positioning
Static: H: 4 mm + 0.5 ppm | V: 8 mm + 1 ppm
PPK: H: 5 mm + 0.5 ppm | V: 10 mm + 1 ppm
RTK: H: 7 mm + 1 ppm | V: 14 mm + 1 ppm
Tilt compensation: RTK + 2 mm + 0.3 mm/°
Convergence time: ~5 s typically
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Data protocols
Corrections: NTRIP, RTCM3
Position output: NMEA, LLH/XYZ
Data logging: RINEX, NMEA, LLH/XYZ, UBX
Internal storage: 16 GB
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GNSS
Signal tracked: GPS: L1C/A, L2C, L5, GLONASS: L1OF, L2OF, Galileo: E1-B/C, E5a, E6, BeiDou: B1I, B1C, B2a, B3I, QZSS: L1C/A, L1C/B11, L2C, L5, NavIC: L1-SPS Data, L5-SPS
Number of channels: 672
Update rates: up to 10 Hz
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Connectivity
LoRa radio: up to 1W
Frequency range: 868/915 MHz
Power: 0.1 W
Distance: Up to 8 km
UHF radio: up to 2W
Frequency range: 410 - 470 MHz
Protocols: TRIMTALK 450S**
Modulation type: GMSK
LTE modem
Regions: Global
Bands: FDD-LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28 TD-LTE: 38, 39, 40, 41 UMTS (UHPS/FDD): 1, 2, 5, 8 Quad-band, 850/1900, 900/1800 MHz
SIM card: Nano-SIM
Wi-Fi: 802.11 b/g/n
Bluetooth: Bluetooth 5.1 (BR/EDR + LE)
Ports: RS-232, USB Type-C
*Use the correct antenna, LoRa or UHF, for your setup.
**TRIMTALK is a trademark of Trimble Inc.
Which Receiver Is Right for You?
Reach RS4 Pro
Reach RS4
Reach RX2
Correction
technique
RTK with precision
H: 7 mm + 1 ppm
V: 14 mm + 1 ppm
PPK with precision
H: 5 mm + 0.5 ppm
V: IO mm + 1 ppm
RTK with precision
H: 7 mm + 1 ppm
V: 14 mm + 1 ppm
PPK with precision
H: 5 mm + 0.5 ppm
V: 10 mm + 1 ppm
RTK with precision
H: 7 mm + 1 ppm
V: 14 mm +1 ppm
Tilt compensation
RTK + 2mm + 0.3mm/°
RTK + 2 mm + 0.3 mm/°
RTK + 2 mm + 0.3 mm/°
Camera
✔︎
X
X
Base mode
✔︎
✔︎
X
Data logging
✔︎
✔︎
X
Connectivity
LoRa / UHF / NTRIP
LoRa / UHF / NTRIP
NTRIP via Bluetooth from
a smartphone/tablet
Battery life
16 hrs as RTK rover with
tilt, 22 hrs of logging
16 hrs as LTE RTK rover,
22 hrs of logging
16 hrs
Weight
920 g
920 g
280 g
Ingress protection
IP68
IP68
IP68 (maximum depth
of 1.5 meters up to 30
minutes)
Comes With Software for the Field and the Office
The Emlid Flow mobile app efficiently manages all field-related tasks, including receiver configuration, RINEX logging, data collection, and stakeout. In its web version—Emlid Flow 360—you can prepare and manage projects, and quickly export and share your data.
The basic features are available for free to all users. Upgrade your Emlid Flow and Flow 360 with a single subscription.
Tilt Compensation
Base and rover setup
Coding
Points, lines, and polygons
Inverse & Traverse
WMS layers
DTM support
Stakeout reports
CSV, DXF, SHP, and KML
