RS4 Pro

Reach RS4 Pro brings high-precision RTK GNSS positioning to demanding survey and stake-out work, enabling field professionals to measure, navigate, and collect data efficiently across challenging sites.

• Visualise stake-out points: Dual Full HD cameras provide augmented reality guidance that overlays designs on the field for faster, more intuitive layout and measurement.
• Maintain centimetre-level accuracy: Track more than 40 satellites across six constellations with 672 channels and full-band L1/L2/L5/L6 support for demanding GNSS environments.
• Measure without levelling the pole: Advanced tilt compensation maintains positioning accuracy when working at an angle, including approximately 18 mm error at a 30° tilt.
• Work through demanding conditions: A magnesium alloy body, IP68 protection, up to 16 hours of runtime, and a –40 °C to +65 °C operating range support extended field operations.

Overview and Who It's For

Reach RS4 Pro is an all-band, multi-constellation RTK GNSS receiver combining dual cameras, AR guidance, tilt compensation, and rugged construction for professional fieldwork. It supports rover and base workflows, multiple correction methods, external hardware connections, and integration with the Emlid Flow ecosystem.

• Survey firms: Collect high-precision positioning data and complete visual stake-out workflows.
• Civil contractors: Place designs in the field with AR guidance and tilt-compensated measurements.
• Infrastructure inspectors: Measure difficult or inaccessible points from a safer vantage using the integrated cameras.
• Drone mapping operators: Integrate precise GNSS positioning into mapping and field workflows.

Key Specs

FAQs

What GNSS constellations does Reach RS4 Pro support?
Reach RS4 Pro supports GPS, GLONASS, Galileo, BeiDou, QZSS, and NavIC across 672 simultaneous GNSS channels.

What is the typical RTK accuracy of Reach RS4 Pro?
Typical horizontal RTK accuracy is approximately 7 mm + 1 ppm.

Does Reach RS4 Pro support tilt compensation?
Yes. Advanced tilt compensation allows measurements without keeping the pole perfectly vertical, with approximately 18 mm error at a 30° tilt.

What are the cameras used for?
The two Full HD cameras support visual stake-out with AR guidance and can be used to capture and measure points from a safe vantage when direct access is difficult.

Can Reach RS4 Pro operate as both a rover and a base?
Yes. It supports rover and base workflows, including NTRIP/RTCM3 corrections and internal LoRa or UHF radio configurations.

Warranty and Returns

This product is covered under the manufacturer's limited warranty. Candrone's standard return and exchange policy applies.

View Candrone's Warranty and Returns Policy

For warranty claims or support, contact our team at 1-888-461-5742 or visit our Contact page.