50-day return policy⌄
- Return within 50 days of purchase.
- Full refund for unopened, sealed, unactivated items.
- Opened products may still qualify if unused.
- For orders over £100, we can arrange your return via DPD or in-person drop-off.
Next-day delivery — order before 3pm⌄
- Order before 3pm Mon–Fri for next-working-day delivery (free over £99).
- UK Saturday delivery available on orders placed before 3pm Friday.
- After 3pm Friday — dispatched Monday.
- Some UK regions may need 2–3 working days.
Discounted options with main purchase⌄
- Bundle pricing on accessories, spares and training when bought together.
- Reduced rates on add-ons selected at checkout.
- Ask us for a tailored quote on multi-unit or fleet orders.
Emlid Reach RS4 Pro
The Emlid Reach RS4 Pro is a multi-band RTK GNSS receiver adding dual-camera AR stakeout and image-based measurement to centimetre-level survey accuracy.
heliguy support & optional extras
Product dossier
Reliable centimetre-level positioning in any environment
Multi-band RTK accuracy
- All-band RTK:
Tracks L1/L2/L5/L6 signals from all constellations for reliable accuracy in any environment.
- Centimetre precision:
RTK accuracy of 7 mm + 1 ppm and tilt-compensated accuracy of 2 mm + 0.3 mm/°.
- Fast tilt compensation:
Next-gen IMU with 5× quicker initialisation for efficient pole-free measurements.
- Full constellation support:
Tracks GPS, GLONASS, Galileo, BeiDou, QZSS, and NavIC anywhere in the world.
Full specifications
Frequently asked questions
What makes the Emlid Reach RS4 Pro different from the RS4?⌄
The Emlid Reach RS4 Pro includes all the features of the RS4 and adds dual Full-HD cameras for augmented reality stakeout and image-based measurement, providing faster, safer, and more efficient workflows.
How accurate is the Emlid Reach RS4 Pro?⌄
The Emlid Reach RS4 Pro delivers centimetre-level precision, with RTK accuracy of 7 mm + 1 ppm and tilt-compensated accuracy of 2 mm + 0.3 mm/°.
What satellite systems does the Emlid Reach RS4 Pro support?⌄
The Emlid Reach RS4 Pro supports all major constellations, including GPS, GLONASS, Galileo, BeiDou, QZSS, and NavIC, for consistent accuracy and reliability anywhere in the world.
What are the camera features on the Emlid Reach RS4 Pro?⌄
The Emlid Reach RS4 Pro features two factory-calibrated Full-HD global shutter cameras that enable AR-guided stakeout and accurate measurement from images.
Can the Emlid Reach RS4 Pro be used as both a base and rover?⌄
Yes, the Emlid Reach RS4 Pro functions as both a base and rover, supporting 915 MHz LoRa, 450 MHz UHF, and NTRIP for flexible correction workflows.
How long does the Emlid Reach RS4 Pro battery last?⌄
The Emlid Reach RS4 Pro runs for up to 16 hours on a single charge and recharges quickly via USB Type-C.
How durable is the Emlid Reach RS4 Pro?⌄
With a magnesium alloy body and IP68 rating, the Emlid Reach RS4 Pro is waterproof, dustproof, and built to withstand temperatures from -40°C to +65°C (-40°F to +149°F).
Does the Emlid Reach RS4 Pro support tilt compensation?⌄
Yes, the Emlid Reach RS4 Pro includes advanced IMU tilt compensation, allowing precise measurements without levelling the pole.
What are Emlid Flow and Emlid Flow 360? What do they offer?⌄
Emlid Reach RS4 Pro can be used with the Emlid Flow and Emlid Flow 360 software platforms.
Emlid Flow
• iOS or Android
• Configure and manage Reach devices
• Set up base and rover
• Log raw data for post-processing
• Survey in the field.
Emlid Flow 360
• Any browser
• Prepare and manage projects
• Instantly share data between field and office
•Backup your work.
Emlid offers a single plan for Emlid Flow and Emlid Flow 360. Choose between the Free and paid-for (Pro) version.
Free plan - ideal for individuals or small teams needing high-precision GNSS.
• Receiver configuration
• Export & Import: CSV, DXF, SHP, KML
• Collect and stakeout points
• Coordinate systems and base shift tool
• Precise point collection
• Satellite and vector maps
• Unlimited projects with instant sync
• Collaboration tools: Up to 10 team members; team workspace for shared data and presets; data authorship.
Pro plan - for growing teams managing complex projects with advanced tools.
• Everything from Free.
• Work with CAD and DTM files
• Localization and COGO tools
• Linework with 4 stakeout modes
• Code libraries
• Reports, auto collection, and more
• File storage: 10 GB per user
• Collaboration tools: Unlimited team members; team workspace for shared data and presets; data authorship.
• £240 annually.
Common questions
- How durable is the Emlid Reach RS4 Pro?
- How accurate is the Emlid Reach RS4 Pro?
- What makes the Emlid Reach RS4 Pro different from the RS4?
- Does the Emlid Reach RS4 Pro support tilt compensation?
- How long does the Emlid Reach RS4 Pro battery last?
- What satellite systems does the Emlid Reach RS4 Pro support?
