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Tritech Gemini 720is Sonar

Tritech Gemini 720is Sonar

The Tritech Gemini 720is Sonar is a real-time, forward-looking multibeam imaging sonar built to deliver clear, video-like acoustic imagery in challenging underwater environments.

Designed for integration on ROVs, AUVs, and other subsea platforms, it supports reliable navigation, obstacle avoidance, and close-range inspection when visibility is limited.

By using advanced acoustic imaging instead of traditional optics, it enables operators to maintain situational awareness in turbid, dark, or deep-water conditions where cameras struggle to perform.

Engineered for smooth, wide-area imaging and accurate target detection, the Gemini 720is enhances underwater operations with precise ranging and improved target separation.

When paired with specialized software, it can also assist with marine object tracking and environmental monitoring around subsea infrastructure.

Ideal for offshore energy, marine construction, and subsea inspection applications, this imaging sonar helps teams operate safely and efficiently below the surface.

Equipment Type: ROV Sonar

Benefits of the Tritech Gemini 720is Sonar

Obstacle avoidance for ROVs and AUVs
Subsea structure inspection
Dam wall imaging
Offshore wind turbine foundation inspection
Anchor and mooring chain inspection
Pipeline inspection
Subsea cable inspection
Hull inspection
Port and harbor infrastructure inspection
Target detection in low-visibility water
Underwater object tracking
Marine life monitoring around subsea assets
Environmental monitoring near offshore structures
Navigation support in turbid or dark environments
Search and recovery operations
Underwater construction support
Pre- and post-installation surveys
Confined space underwater inspection

Work-Class Remotely Operated Vehicles (WROVs)
Inspection-Class ROVs
Autonomous Underwater Vehicles (AUVs)
Unmanned Surface Vehicles (USVs)
Pole-mount deployment systems
Offshore wind turbine foundations
Subsea turbine structures
Gravity-based structures
Monopiles
Jackets
Dams
Bridge piers
Piers
Jetties
Quay walls
Anchors
Mooring lines
Subsea pipelines
Subsea power cables
Umbilicals
Risers
Manifolds
Wellheads
Subsea templates
Ship hulls
Ballast tanks
Intake structures

Offshore renewable energy
Offshore wind energy
Tidal energy
Oil and gas
Subsea engineering
Marine construction
Civil engineering
Infrastructure inspection
Hydroelectric power
Maritime transportation
Port and harbor operations
Defense and naval operations
Marine research
Environmental monitoring
Commercial diving
Salvage and recovery
Aquaculture
Dredging operations
Offshore decommissioning
Underwater archaeology

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Tritech Gemini 720is Sonar for Real-Time Forward-Looking Underwater Navigation and Inspection

When you’re working underwater, visibility isn’t just poor, sometimes it’s nonexistent. Silt, darkness, depth, and debris can turn even routine inspections into slow, risky operations.

Cameras become useless, divers face safety concerns, and ROV pilots are left navigating blind around high-value infrastructure. In environments like offshore wind farms, subsea pipelines, dams, or ports, not being able to clearly see what’s ahead is not just frustrating. It is expensive and dangerous.

That’s where a forward-looking imaging sonar like the Tritech Gemini 720is becomes essential. Instead of relying on light, it uses sound to create clear, real-time images of what’s in front of your vehicle. Operators can spot obstacles before they become problems, identify structures with confidence, and move through murky water with far greater control.

The Tritech Gemini 720is gives you the situational awareness you need to work safely, make faster decisions, and keep underwater operations moving forward even when visibility drops to zero.

High-Definition CHIRP Imaging Sonar with Ultra-Fast Real-Time Update Rates

The Tritech Gemini 720is combines a 720 kHz operating frequency with advanced CHIRP processing to deliver exceptionally clear, high-definition acoustic imagery with superior target separation.

Instead of blurry or overlapping returns, operators get sharp, easy-to-interpret images that reduce guesswork in zero-visibility or highly turbid water.

Paired with lightning-fast update rates of up to 97 Hz (range dependent, with a standard fast rate of 30 Hz), the system produces smooth, video-like imaging across 512 beams.

This real-time performance eliminates the lag common in older sonar systems, giving ROV and AUV pilots immediate visual feedback for split-second obstacle avoidance decisions and safer navigation around critical subsea assets.

Ultra-Wide 120° Field of View with Integrated Velocity-of-Sound Sensor for Precise Underwater Ranging

The Tritech Gemini 720is features an ultra-wide 120-degree horizontal field of view, giving operators a broad, clear view of the underwater environment ahead without constantly repositioning the vehicle.

This wide-angle perspective reduces tunnel vision, helping pilots identify hazards, structures, and targets in their periphery while maintaining stable navigation.

Paired with an integrated velocity-of-sound sensor (velocimeter), the sonar automatically adjusts for changes in water temperature, salinity, and pressure to ensure highly accurate range and positional data.

The result is reliable distance measurements and spatial awareness operators can trust, whether inspecting dams, anchors, or complex subsea infrastructure in deep or low-visibility conditions.

Tritech Gemini 720is Sonar with 4000m Depth Rating and Seamless Software Integration

Built for demanding subsea environments, the Tritech Gemini 720is is available in 1000 m-rated aluminum and 4000 m-rated titanium housings, allowing operators to confidently deploy the system in extreme deepwater, high-pressure conditions.

This rugged construction reduces the risk of equipment failure or implosion during critical offshore energy, research, and engineering operations.

On the software side, the sonar integrates seamlessly with Tritech’s Genesis software, offering a tailored user interface, click-and-track functionality, and specialized engineering measurement tools.

With Windows and Linux SDKs available, operators can also integrate sonar data directly into custom control systems, eliminating fragmented workflows and simplifying multi-system vehicle operations.

Automated Target Tracking with Gemini SeaTec and Compact ROV-Ready Mounting Design

The Tritech Gemini 720is can be enhanced with the optional Gemini SeaTec software upgrade, enabling automatic detection, tracking, and classification of underwater targets and marine life.

This replaces manual, operator-dependent monitoring with reliable, automated tracking, which is especially valuable for environmental monitoring around subsea wind farms and other offshore infrastructure.

Instead of relying solely on human interpretation, teams gain consistent, data-driven insights that improve reporting accuracy and operational efficiency.

Its compact, redesigned mounting configuration makes integration simple across Work-Class ROVs, inspection ROVs, AUVs, or customer-supplied pole-mount systems.

Supporting both Ethernet and VDSL communications, the system minimizes complex integration work and reduces vehicle downtime. This flexible design allows operators to quickly deploy the sonar on a wide range of underwater platforms without extensive reconfiguration.

Ready to streamline underwater tracking and simplify integration? Contact MFE Offshore to see how the Tritech Gemini 720is can support your next subsea operation.

Tritech Gemini 720is Sonar Technical Specifications

Operating Frequency	720 KHz
Angular Resolution	1.0° acoustic, 0.25° effective
Range	0.1 m - 120 m / 4 in - 394 ft
Depth Rating	1000 m / 3281 ft (Aluminium) 4000 m / 13123 ft (Titanium)
Supply Voltage	19 to 74 VDC
Power Requirements	16 - 27 W (range dependent)
Main Port Protocol	Ethernet or VDSL
Weight In Air	3.40 kg / 7.50 lbs (Aluminium) or 5.00 kg / 11.02 lbs (Titanium)
Weight In Water	1.30 kg / 2.86 lbs (Aluminium) or 3.00 kg / 6.61 lbs (Titanium)

Number of Beams	512
Horizontal Beam Width	120°
Vertical Beam Width	20° (tilted down 10°)
Range Resolution	4 mm & 8 mm / 0.2 in & 0.3 in1
Update Rate	5 – 97 Hz (range dependent)
Mode of Operation	CHIRP and CW
Speed of Sound	Integrated Velocity of Sound sensor for accuracy

Auxiliary Port Protocol	RS232, RS485 (half duplex), TTL in, Ethernet
Connector Type	Seacon 55 series, Subconn FCR 15 series or Schilling SeaNet
VDSL cable length	Maximum length for VDSL and power is 300 m / 984 ft, if power is provided locally the maximum length for VDSL communication is 500 m / 1640 ft

Temperature Rating (operating)	-10 °C to 35 °C / 14 °F to 95 °F
Temperature Rating (storage)	-20 °C to 50 °C / 4 °F to 122 °F
Dimensions	271 mm x 135 mm x 107 mm / 10.67 in x 5.32 in x 4.22 in

Included	Genesis
Processor	Minimum - 2 GHz Recommended - 3 GHz Quad Core
Graphics	3D hardware accelerated graphics card
SDK	Available on request
Operating System	Microsoft Windows 7, 10, 11