Flagship USV for Shallow-Water Surveys

​SL40​ is our flagship inland grade USV, purpose-built for ​shallow-water hydrographic surveys, bathymetric survey, and flow rate assessments.

Refined through years of real-world use and continuous upgrades, it delivers unmatched stability and reliability—making it the safest, most proven choice for your inland water missions.

Rugged Architecture for Field Operations

The SL40 is a thoughtfully designed compact USV built for real-world use. Every component, from the hull to the propulsion system, was engineered for durability and efficiency.

SL20: One-Person Operation, Zero Hassle.

SL40​ is a flagship inland grade USV, purpose-built for ​shallow-water hydrographic surveys, bathymetric survey, and flow rate assessments.

Refined through years of real-world use and continuous upgrades, it delivers unmatched stability and reliability—making it the safest, most proven choice for your inland water missions.

Rugged Architecture for Field Operations

The SL20 is a thoughtfully designed compact USV built for real-world use.

Every component, from the hull to the propulsion system, was engineered for durability and efficiency.

Dual Control Options

The SL20 USV offers two control options, being operable via remote control for precise human intervention and equipped with an autopilot system for autonomous navigation and task execution.

Radio Remote control with handheld terminal, communication range up to 1km.

Autopilot under autonomous navigation, communication range up to 2km.

Wet Payload Flexibility

SL20 equipped with 177mm diameter moon pool for instruments installation, the mounting brackets for instruments like echo sounder, ADCP, RTK GPS could be customized designed.

Shallow – Water Navigation

With only 15cm draught, SL40 can navigate and operate effectively in narrow inland waterways, shallow rivers, and coastal areas where conventional vessels cannot access.

Compact Portability

The SL40 features a compact, carbon-fiber hull—about the size of a large suitcase (1.65m Χ 0.55m Χ 0.38m) and weighing as much as two travel backpacks (42kg with dual batteries

Tangle Free Propulsion

Powered by a debris-resistant waterjet thruster, SL40 reaches 10 knots while avoiding tangles in weeds and floating obstacles - ideal for messy shallow waters.

Enduring Operation and Quick Swap

With 8-hour endurance @ 3 knots and field-swappable batteries, SL40 powers full-day surveys without downtime.

Dual Control Options

The SL40 USV offers two control options, being operable via remote control for precise human intervention and equipped with an autopilot system for autonomous navigation and task execution.

Radio Remote control with handheld terminal, communication range up to 1km.

Autopilot under autonomous navigation, communication range up to 2km

Wet Payload Flexibility

SL40 provides flexible deployment of wetend payloads through two moon pool options—either a compact 210mm Χ 210mm square pool or an extended 210mm Χ 275mm rectangular pool—enabling seamless integration of surveying instruments including:

- Teledyne ODOM E20 SBES

- R2 Sonic 2020 MBES, Kongsberg M3 MBES

- Valeport SVS

- YSI EXO2s

Compact Portability

The SL20 USV features a carbon-fiber hull (1.05mΧ0.55mΧ0.38m, 17kg), compact as a golf travel bag and light enough for one-handed lifting.

Shallow – Water Navigation

With only 15cm draught, SL20 can navigate and operate effectively in narrow inland waterways, shallow rivers, and coastal areas where conventional vessels cannot access.

Tangle Free Propulsion

Powered by a debris-resistant waterjet thruster, SL20 reaches 8 knots while avoiding tangles in weeds and floating obstacles—ideal for messy shallow waters.

Enduring Operation and Quick Swap

With 6-hour endurance @ 3 knots and field-swappable batteries, SL20 powers full-day surveys without downtime.