South
AQUA M20 Autonomous Bathymetric Survey USV
The AQUA M20 Autonomous Bathymetric Survey USV is built for hydrographic surveying. and is a compact USV with a dual GNSS receiver and a built-in 200 kHz echo sounder for single-beam bathymetry. It cruises up to 7 m/s and runs about 5.5 hours at 2 m/s on a removable 33V 50Ah battery. It also possesses dual antennas that provide stable heading, and remote control reaches 2.5 km with live camera and data links. Watch the AQUA M20 in Action
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SKU: MET-MARN02
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Product Highlights
- Dual ducted propellers: steady thrust for efficient cruising
- Double-decker trimaran hull: improved stability on survey tracks
- Built-in 200 kHz echo sounder: ready for single-beam bathymetry out of the box
- Optional dual-frequency/MBES support: extend depth range up to 600 m and adapt to sites
- Dual GNSS antennas + IMU: reliable heading at low speeds for straight lines
Overview
The AQUA M20 Autonomous Bathymetric Survey USV is a high-performance autonomous surface vehicle designed for professional bathymetric, hydrographic, and marine survey applications. Built with a nano carbon fiber polymer hull and modular payload bay, the M20 supports a wide range of advanced sensors such as ADCP, multi-beam echo sounders, side scan sonar, sub-bottom profilers, and water quality sensors. It makes it ideal for complex underwater survey missions.
Equipped with dual GNSS antennas, integrated IMU, and real-time RTK positioning, the M20 delivers centimeter-level accuracy even in challenging marine environments. It also includes a dual-propulsion system, automatic cruise and return-to-home capabilities, and is resistant to Category 3 winds and Category 2 waves, with IP67 water resistance.
With up to 7 hours of autonomous operation, real-time video communication, 4G telemetry, and a remote control range of up to 2.5 km, the M20 USV is a complete, field-ready solution for river mapping, dredging surveys, hydrology analysis, and coastal monitoring projects, where high precision and full autonomy are required.
Product Video
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Specifications
| Dimensions (L×W×H) | 1180 × 700 × 390 mm |
|---|---|
| Weight (without battery) | 12.8 kg |
| Material | Nano carbon fiber polymer composite |
| IP Rating | IP67 |
| Wind–wave resistance | Beaufort Cat 3 wind, Cat 2 waves |
| Propulsion | Electric drive; differential/reversible steering |
| Cruise speed | 7 m/s max |
| Endurance | 5.5 h @ 2 m/s |
| Battery | 33 V, 50 Ah detachable lithium |
| Default echo sounder | 200 kHz; 5° beam; 0.15–100 m; ±1 cm ±0.1% D |
| GNSS antennas | Dual (front and rear) |
| GNSS constellations | GPS, BDS, GLONASS, Galileo, QZSS, SBAS, IRNSS |
| Remote control | up to 2.5 km; 7.2-inch display |
Features
Dual ducted propellers: steady thrust for efficient cruising
Double-decker trimaran hull: improved stability on survey tracks
Built-in 200 kHz echo sounder: ready for single-beam bathymetry out of the box
Optional dual-frequency/MBES support: extend depth range up to 600 m and adapt to sites
Dual GNSS antennas + IMU: reliable heading at low speeds for straight lines
4G + radio datalink: RTK corrections and remote control on the water
7 m/s cruise with 5.5 h endurance: cover large areas with fewer swaps
7.2″ controller with 2.5 km link: plan missions and monitor video/telemetry in the field
IP67 composite hull: protects electronics during marine work
Radar + 360° camera: situational awareness for obstacle avoidance
In the Box
- USV hull (AQUA M20)
- Built-in mini single-frequency echo sounder
- Integrated microwave radar
- Integrated 360° camera
- Integrated GNSS antennas ×2 (front and rear)
- Network bridge antenna
- 4G telecom antenna
- Radio datalink antenna
- Battery
- Battery charger
- Remote controller
- Remote controller charger
- Transport case
- Software dongle
Product Downloads
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| Specification | This product | |||
|---|---|---|---|---|
| Brand | South | UbiNavi | UbiNavi | South |
| Availability | In stock | In stock | In stock | In stock |
| Product Type | GNSS Receiver | Unmanned Surface Vehicle | Unmanned Surface Vehicle | GNSS Receiver |
| Condition | New | New | New | New |
| Recommended Use | High-precision GNSS RTK work | Monitoring projects | Monitoring projects | High-precision GNSS RTK work |
| Connectivity | — | — | — | 4G/LTE, UHF radio |
| IP Rating | — | — | — | IP67 |
| Delivery Time | 4–7 business days | 4–7 business days | 4–7 business days | 4–7 business days |
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