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Emlid Reach RS4 — My Surveying Direct
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    Emlid Reach RS4

    Emlid Reach RS4

    by Emlid
    In Stock & Ready To Ship
    $3,899.00 - $3,899.00
    $3,899.00
    $3,899.00 - $3,899.00
    $3,899.00

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    Reach RS4 All-Band GNSS Receiver | Professional Surveying Equipment
    Authorized Emlid Dealer Best Price Guarantee Free Shipping Manufacturer Warranty Professional Support

    Reach RS4 All-Band GNSS Receiver

    Reach RS4 Professional GNSS Receiver
    672
    GNSS Channels
    <5s
    Convergence Time
    16h
    Battery Life

    Overview

    The Reach RS4 is a professional-grade GNSS receiver designed for high-precision surveying and mapping applications. With multi-band support, tilt compensation, and robust connectivity options, it delivers centimeter-level accuracy in the most challenging environments.

    High-accuracy, even under canopy

    Auto-play

    The Reach RS4 can track all available satellite constellations and frequencies, including the lower L5 and L6 bands, which are more resistant to multipath and interference. With 672 channels, it can track 40+ satellites at a time. These features ensure reliable performance and centimeter-level precision.

    Comprehensive GNSS Support

    With support for all major GNSS constellations including GPS, GLONASS, Galileo, BeiDou, QZSS, and NavIC, the RS4 delivers superior satellite tracking and faster initialization times compared to conventional receivers.

    The device is future-proofed to work with upcoming correction services like SSR corrections and Galileo HAS, ensuring long-term viability for your surveying needs.

    Reach RS4 Detailed Render

    Next-gen tilt compensation

    Auto-play

    The Reach RS4 delivers accurate results even at high tilt angles — for example, a 30° tilt still achieves 18 mm precision. The compensation mechanism activates with just a few moves and remains stable throughout the survey, saving time and avoiding the need for recalibration.

    This mount is specifically designed for tilt compensation, eliminating backlash and securing the receiver firmly to the survey pole. Even a small amount of wobble between the device and the pole can compromise the accuracy when tilting. The quick-release system provides a fast and reliable connection for maximum precision.

    Key Advantages

    All-band GNSS

    Supports all major GNSS constellations including GPS, GLONASS, Galileo, BeiDou, QZSS, and NavIC with 672 channels.

    Fast Convergence

    Rapid initialization with convergence time of less than 5 seconds typically, ensuring minimal downtime.

    Long Range Radio

    Integrated LoRa radio with up to 8 km range and UHF radio options for extended coverage in remote areas.

    Multiple Connectivity

    Built-in LTE modem, Wi-Fi, and Bluetooth 5.1 for flexible communication options in any environment.

    Rugged & Durable

    IP68 rated for dust and water resistance, operating in temperatures from -40°C to +65°C.

    Extended Operation

    Up to 16 hours as RTK rover with tilt compensation or 22 hours of data logging on a single charge.

    Built to perform in extreme conditions

    Magnesium alloy body

    The RS4's magnesium alloy body is as strong as it is lightweight. This material is often used for aerospace equipment and high-end electronics. It strikes the perfect balance of durability and lightness, making it ideal for use in tough conditions while remaining easy to handle.

    16 hours on one charge

    The RS4 offers an impressive battery life of up to 16 hours on a single charge. Use the USB-C for recharging or use a power bank for even greater flexibility. Designed to keep working as hard as you do, without interruption.

    Waterproof

    Thanks to its IP68 rating, the RS4 is fully dustproof and waterproof. Whether it's raining, snowing or a dusty construction site, the Reach RS4 will keep working.

    -40 to +65 ºС

    The Reach RS4 operates in temperatures from -40°C to +65°C. Its performance remains excellent in both freezing cold and scorching heat.

    Reach RS4 Built to Perform

    What's in the Box

    The Reach RS4 comes complete with everything you need to start surveying right out of the box:

    Reach RS4 GNSS Receiver
    Carrying Bag
    5000 mAh Li-Ion Battery
    USB Type-C Charging Cable
    Documentation & Quick Start Guide
    Mounting Bracket
    Reach RS4 Carrying Bag

    Use Cases

    Reach RS4 in Surveying Application

    Precision Surveying

    The Reach RS4 delivers the accuracy required for professional surveying applications with static precision of H: 4 mm + 0.5 ppm and V: 8 mm + 1 ppm.

    Reach RS4 on Construction Site

    Construction Layout

    With tilt compensation and fast initialization, the RS4 is ideal for construction layout tasks where time is critical.

    Reach RS4 in Agricultural Setting

    Precision Agriculture

    The RS4's support for multiple correction sources makes it suitable for precision agriculture applications.

    Coordinate your team

    Invite team members, share projects and manage access. Monitor field progress from the office and exchange data instantly with real-time sync.

    One workflow for the whole team, with data that is always up to date, a consistent interface, and no additional training required.

    Execute projects on site

    • Topographic surveys – gather terrain and elevation data accurately
    • Stakeout & layouts – place points, lines, and markers directly in the field
    • Line & road surveys – stake centerlines, offsets, and curves with precision
    • Cut & Fill calculations – measure earthworks and stockpiles on site
    • As-built verification – check constructed structures against your plans
    Reach RS4 with Bumper Protection

    Technical Specifications

    Positioning
    Precision Static H: 4 mm + 0.5 ppm
    V: 8 mm + 1 ppm
    Precision PPK H: 5 mm + 0.5 ppm
    V: 10 mm + 1 ppm
    Precision RTK H: 7 mm + 1 ppm
    V: 14 mm + 1 ppm
    Tilt Compensation RTK + 2 mm + 0.3 mm/°
    Convergence Time <5 s typically
    Number of Channels 672
    Update Rates Up to 10 Hz
    Connectivity
    Emlid Radio Included
    LoRa Radio 868/915 MHz, 0.1W, Up to 8 km
    UHF Radio 410-470 MHz, TRIMTALK 450S
    LTE Modem Global bands, Nano-SIM
    Wi-Fi 802.11a/b/g/n
    Bluetooth Bluetooth 5.1 (BR/EDR + LE)
    Ports RS-232, USB Type-C
    Mechanical
    Dimensions 128.6 × 128.6 × 99.3 mm
    Weight 920 g
    Operating Temperatures -40 to +65 °C
    Ingress Protection IP68
    Electrical
    Autonomy 16 hrs as RTK rover with tilt
    22 hrs of logging
    Battery Li-Ion 5000 mAh, 7.2 V, 36 Wh
    Charging USB Type-C (PD): 5V/3A, 9V/3A, 12V/3A, 15V/3A
    Internal Storage 16 GB
    Signal Tracked
    GPS L1C/A, L2C, L5
    GLONASS L1OF, L2OF
    Galileo E1B/C, E5a, E6
    BeiDou B1I, B1C, B2a, B3I
    QZSS L1C/A, L1C/B11, L2C, L5
    NavIC L1SPS Data, L5SPS
    Data Protocols
    Corrections NTRIP, RTCM3
    Position Output NMEA, LLH/XYZ
    Data Logging RINEX, NMEA, LLH/XYZ, UBX

    Why Shop with Us?

    Quality and Value

    We obsess about quality and value for our customers. All the products that we sell are genuine and in brand-new condition.

    Secure Payments

    We use encrypted SSL security to ensure that your credit card information is protected.

    Free Shipping

    On all orders (lower 48 states).

    30 Days Return Policy

    We accept returns within 30 days of delivery, provided the product is not used and in its original condition.

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