The swivel supports a 35 kN Working Load Limit (WLL). If you need less, we have a 15kN rated swivel also available for lighter load applications.

Yes. The optional conductive feed‑through supports 10, 12, or 16 signal, each rated for 220 V AC/DC and 2 A per conductor.

Absolutely. It is oil‑filled and pressure‑balanced, allowing reliable operation at up to 6,000 metres (19,000 ft) depth, and is pressure‑tested according to API 17F.

The swivel is made from Titanium Grade 5 for maximum corrosion resistance. As standard it supports multiple MCBH connector types and can be customised on request.

No. The high‑quality bearings, seals, and synthetic bushings enable maintenance‑free long‑term operation, even under continuous load in harsh ocean environments.

With its low‑power design and internal battery housing, the system supports up to two years of continuous operation, extendable with external battery containers.

The base system includes up to 4 TB, but storage can be expanded to 36 TB, enabling long‑term, high‑resolution multi‑channel recordings.

Yes. Sono.Vault SubMAReS supports up to four fully synchronised channels at full sampling rate and 24‑bit resolution.

Absolutely. The system is rated to 6000 metres (approx 19,000 ft) depth, pressure‑tested according to API 17F, and delivered with a certified test protocol.

Both. It offers live Ethernet audio streaming for real‑time monitoring as well as long‑term autonomous recording with large onboard storage.

The swivel supports a 15 kN Working Load Limit (WLL). If you need more, we have a 45 kN rated swivel also available for heavy load applications.

Yes. The optional conductive feed‑through supports 2, 3, 4, 6 or 8 signals, each rated for 220 V AC/DC and 2 A per conductor.

Absolutely. It is oil‑filled and pressure‑balanced, allowing reliable operation at up to 6,000 metres (19,000 ft) depth, and is pressure‑tested according to API 17F.

The swivel is made from Titanium Grade 5 for maximum corrosion resistance. As standard it supports multiple MCBH connector types and can be customised on request.

No. The high‑quality bearings, seals, and synthetic bushings enable maintenance‑free long‑term operation, even under continuous load in harsh ocean environments.

No. The Modular Seafloor Lander is designed for ROV- and diver-free operations, reducing offshore complexity and cost.

Deployment is performed using a standard vessel deck crane, without the need for an A-frame or long lifting wire. The system is released in free-fall directly from under the splash zone level, eliminating subsea intervention.

For recovery, an acoustic command releases the ballast plate, allowing the lander to ascend via positive buoyancy. If required, the ballast plate can also be retrieved afterward using a Dyneema rope connection, supporting environmental requirements and providing additional stability during lifting by keeping the system “anchored” during recovery.

Typical deployments last 12 months, enabling full seasonal environmental monitoring. Depending on the instrument configuration, sampling rates, and battery capacity, deployments of up to 24 months are achievable.

The system uses modular battery housings with Li primary cells and intelligent power control, allowing you to optimise:
• monitoring duration
• data resolution
• number and type of sensors

This flexibility allows precise tailoring of the system to project requirements, avoiding overdesign or unnecessary cost. The modular design also allows quick upgrades or reconfiguration between deployments, supporting long-term monitoring programs with evolving requirements.

Yes. The Modular Seafloor Lander supports multiple data access approaches, from fully autonomous to real-time monitoring:
• post-recovery (standard): full dataset retrieved after deployment
• periodic wireless access: data transfer via acoustic, optical, or electromagnetic communication, including connections to AUVs, USVs, or surface gateways
• real-time monitoring: integration with moored buoys transmitting via satellite
• direct cabled connection: continuous power supply and real-time high-bandwidth data transmission

This flexibility allows periodic inspections, adaptive mission control, or continuous monitoring – unlike many traditional landers that only support data retrieval after recovery.

The platform supports extensive modular integration of both third-party and Develogic systems.

Typical sensors include:
• physical: CTD, ADCP, current profilers
• chemical: O2, CO2, pH, CH4, turbidity, chlorophyll
• acoustic: active systems and passive multi-channel recorders
• imaging: stereo HD cameras with synchronized lighting
• custom or client-specific instrumentation

The Develogic datalogger manages:
• power distribution
• communication scheduling
• data collection, filtering, and light post-processing

You can choose between:
• centralised architecture (single power/data hub), or
• distributed architecture (standalone instruments integrated mechanically)

This ensures compatibility with almost any monitoring concept.

Yes. The system is engineered for both scientific and industrial-grade deployments, with strong positioning in deep water.
Key points:
• depth ratings: up to 6000 m, with optimized configurations at 3000-6000 m
• designed and tested according to ISO, DNV, API (17F), NORSOK, AD2000 standards
• proven suitability for: offshore oil & gas, offshore wind, CCUS monitoring, subsea mining, environmental research

While highly competitive in deep-water applications, the system also remains scalable for shallower deployments where flexibility and modularity are required.

Traditional subsea monitoring technologies each offer specific advantages, but often require compromises. Classical benthic landers provide a flexible deployment platform but typically rely on manual recovery to access data. Ocean-bottom nodes (OBNs) deliver long-duration autonomous operation but are generally focused on seismic applications. Cabled observatories enable real-time data access but require significant infrastructure investment and installation effort.

The Modular Seafloor Lander combines the strengths of these approaches in a single, compact system. Hybrid communications and acoustic release functionality simplify deployment and recovery, while its modular architecture supports a wide range of environmental monitoring sensors beyond seismic applications. Optional real-time data transmission provides many of the benefits of a cabled observatory without the need for permanent subsea infrastructure.

With a compact, containerised design weighing less than one tonne, the system also reduces the logistical complexity and cost associated with larger subsea installations.

In practical terms, the Modular Seafloor Lander delivers:

• the long-endurance autonomy typically associated with ocean-bottom nodes
• the flexibility and sensor adaptability of traditional landers
• the data accessibility of cabled systems, without the infrastructure burden

All within a single, deployable platform designed for efficient and cost-effective subsea monitoring.

To support different project needs and budgets, we offer flexible commercial options:
• equipment supply (purchase)
• short- or long-term rental
• data-as-a-Service (DaaS) – we deploy, operate, and deliver processed data

This allows customers to:
• minimise upfront investment
• scale monitoring programs
• focus on data insights instead of operations

Yes. The Modular Seafloor Lander is specifically designed for repeated deployments and easy reconfiguration, making it a long-term asset rather than a single-use system.

Its modular mechanical structure and hardware architecture allow:
• fast replacement or upgrade of sensors and instruments
• adjustment of battery capacity and mission duration
• integration of new subsystems (e.g. moorings, communication options, cameras)

Both centralised and distributed system architectures support flexible reconfiguration between campaigns without major redesign.

This enables:
• multi-year monitoring programs using the same platform
• adaptation to changing project requirements
• reduced total cost of ownership compared to more rigid or application-specific systems

In practice, operators can recover, reconfigure, and redeploy the system within short turnaround times, supporting efficient campaign-based or seasonal monitoring strategies.

Standard housings are available with up to 6,000 metres depth ratings, each designed with a 1.5 safety factor and certified through pressure testing according to API 17F.

All housings use Titanium Grade 5, ensuring superior long term corrosion resistance, low weight, and suitability for extended deployments in harsh marine environments.

Yes. Endcaps can be customised with up to 13 connectors, sensor mounts, optical flat or dome ports, engravings, and custom machining. Multiple housing lengths can be coupled to increase internal volume.

The housings feature a tool free cap design for quick access, or bolted cap for maximum security. Optional pressure relief valves support safe handling and vacuum testing.

Off-the-shelf mooring frames, clamps, and mounting solutions are available for all housing sizes. Additional accessories can be provided on request to support integration into new or existing subsea systems.

It is rated for 100 metre shallow water deployments, making it ideal for coastal, harbour, and nearshore monitoring applications.

The housing is made from corrosion resistant POM with Titanium Grade 5 bolts, ensuring durability, low weight, and long term stability in marine environments.

Yes. Endcaps can include up to 13 underwater connectors, sensor mounts, blind caps, or acoustic transducer/hydrophone interfaces. Custom machining and engravings are also available.

Every unit is pressure tested according to API 17F and delivered with a test protocol and pressure test certificate, ensuring full traceability and verified performance.

Standard mooring frames are available, and additional accessories can be provided on request to support integration into existing shallow water systems.

The light is designed for safe operation down to 6000 m, housed in a robust titanium Grade 5 body and pressure tested according to API 17F.

It delivers up to 11,000 lumens with exceptional efficiency—up to 170 lm/W at 50% power and 150 lm/W at full output, measured underwater including dome losses.

Yes. The light is available with fixed 5000 K or tone controlled 3000–5700 K output.

The UW.LED75 supports analog and digital dimming, flicker free operation, and RS 232 (EIA 232) for configuration, system integration, and pulse mode control.

It features thermal and overcurrent protection

The HF version operates at 18–30 kHz, offering up to 2.1 kbit/s and 4000 m range. The VHF version operates at 45–65 kHz, providing up to 4.1 kbit/s and 1000 m range.

Two housings are offered: POM C (100 m) for surface and shallow water use, and Titanium Grade 5 (6000 m) for deep sea deployments. Both are pressure tested to API 17.

The modem supports RS 232/422/485 and Ethernet 10/100Base TX. Unused interfaces can be repurposed for sensors or data logging.

Yes. It supports up to 512 GB SD card storage, with optional sensor power control and event based logging.

Common uses for the modem include seafloor lander communication, surface-to-subsea links and transparent cable replacement communication for underwater systems and vehicles.