Marine & Underwater Sensors

Suppliers & manufacturers of marine and Underwater Sensors for mapping, inspection and underwater measurement
Overview Marine & Underwater Sensors
By Staff Writer Last updated: April 16th, 2025

Marine Sensors for ROV, UUV & AUV

UUVs (unmanned underwater vehicles), AUVs (autonomous underwater vehicles) and ROVs (remotely operated vehicles) can be equipped with a variety of marine sensors that help the vehicles carry out tasks related to their missions, such as navigation, mapping, and environmental monitoring.

underwater sensors

SPRINT-Nav Subsea Navigation Sensors by Sonardyne International

 

Acoustic Underwater Sensors

rov sensors

iXblue’s Rovins Nano – Compact navigation-grade INS for ROVs

Acoustic sensors are used for navigation and positioning. These underwater sensors, which are part of systems such as Long Baseline (LBL) and Ultra-Short Baseline (USBL), allow unmanned vehicles to communicate with either underwater transponders or transducer arrays in order to get an accurate position fix. UUVs may also utilise Doppler Velocity Logs (DVLs), which are sensors that use multiple acoustic beams to estimate velocity relative to the sea floor.

Acoustic sensors are also used by sonar systems such as side-scan sonars and multibeam echosounders. These systems are used for underwater mapping and bathymetry, and to detect explosive hazards as part of MCM (mine counter-measures) operations. Echosounders can also be used to detect and locate underwater targets of interest such as shoals of fish.

Types of Underwater Sensor for UUV

subsea sensors

Airmar’s 200m Mini Altimeter Kit Smartâ„¢ Sensor for AUVs, ROVs

UUVs may carry a variety of sensors for environmental monitoring and research. These may include temperature sensors, oxygen and chemical sensors, water sampling systems, and fluorometers.

Cameras are used by UUVs to provide a real-time view for vehicle operators and may capture footage and images for inspection, surveillance, cinematography and a range of other applications. They can also be used to enable autonomous operations, providing the means to navigate underwater and avoid obstacles.

Sensor Fusion

marine sensors

Subsonus Underwater Acoustic Positioning System by Advanced Navigation

Data from subsea technology such as underwater cameras, sonar, marine INS (inertial navigation systems), DVLs and other marine sensors may be combined together using sensor fusion algorithms in order to provide more accurate autonomous underwater navigation.

Sensor fusion is used for SLAM (simultaneous localization and mapping), a technique that allows an autonomous vehicle to create a map of its surroundings and orient itself within that map.

Products (25)

Subsea Sentinel Sensor Node

Seabed sensor node for detection & tracking applications

Seabed sensor node for detection & tracking applications
...utonomously in underwater arrays for extended periods of time to provide reliable collection and...
Sams 50 Synthetic Apeture Sonar

Synthetic aperture sonars for towfish & UUVs

Synthetic aperture sonars for towfish & UUVs
The SAMS Series of synthetic aperture sonars (SAS) provides real-time processing and superior imagin...
Canopus

Intelligent seabed transponder for LBL positioning

Intelligent seabed transponder for LBL positioning
Canopus is an intelligent transponder providing LBL and sparse LBL positioning and acoustic communic...
Ramses

Intelligent LBL transceiver for ROV & AUV navigation

Intelligent LBL transceiver for ROV & AUV navigation
...nd Temperature sensors...
Posidonia

USBL positioning & tracking for long-range & deepwater UUVs

USBL positioning & tracking for long-range & deepwater UUVs
...... blocks (INS, Ramses, motion sensors)...
MIDAS WLR

Water level recorder for offshore environments

Water level recorder for offshore environments
...ce of pressure sensor ranges to suit specific depth requirements. Data can be samples at up to 8Hz,...
miniCTD DR Sensor

Compact CT sensor with 500m and 6000m options

Compact CT sensor with 500m and 6000m options
...nd temperature sensor available in 500m acetal and 6000m titanium versions. Thanks to Valeport's...
Model 803 Water Velocity Sensor

Real-time water velocity sensor for ROVs & AUVs

Real-time water velocity sensor for ROVs & AUVs
...omagnetic flow sensor with sophisticated processing electronics. It is provided as standard as a...
UV-SVP Sensor

Sound Velocity Profiler for space-constrained UUVs

Sound Velocity Profiler for space-constrained UUVs
The UV-SVP is a compact sound velocity profiler designed specifically for space-constrained for ROVs...
uvSVX Sensor

Compact sound velocity profiler for underwater vehicles

Compact sound velocity profiler for underwater vehicles
...s and unmanned underwater vehicles that also delivers calculated salinity and density data....
VA500 Underwater Altimeter

High-accuracy underwater altimeter for AUVs & ROVs

High-accuracy underwater altimeter for AUVs & ROVs
...ovides a novel underwater positioning solution for ROVs, AUVs and unmanned underwater vehicles,...
miniIPS1 Underwater Pressure Sensor

Compact underwater pressure sensor with OEM option

Compact underwater pressure sensor with OEM option
...is a precision underwater pressure sensor designed to gather real-time depth information with...
Hyperion Turbidity

Deep-sea dual-sensor turbidity measurement for ROVs & AUVs

Deep-sea dual-sensor turbidity measurement for ROVs & AUVs
... environmental sensor that delivers high-performance measurements of turbidity, combining a...
SwiFT SVP Sensor

High-accuracy SVP with wireless communications

High-accuracy SVP with wireless communications
... the versatile sensor can run for up to a week on a single charge and allows data to be quickly and...
SWiFT CTD Sensor

High-accuracy CTD with Bluetooth® wireless communications

High-accuracy CTD with Bluetooth® wireless communications
The SWiFT CTD profiler provides direct survey-grade measurement of conductivity, temperature and dep...
200m Mini Altimeter Kit Smartâ„¢ Sensor

Underwater/Subsea altimeter kit for AUVs, ROVs

Underwater/Subsea altimeter kit for AUVs, ROVs
...r Kit Smartâ„¢ Sensor is specially designed for AUVs, ROVs and marine robotics platforms. The kit...
EchoRange+â„¢ 30/200 kHz Smartâ„¢ Sensor

Ultrasonic marine temperature and depth sensor

Ultrasonic marine temperature and depth sensor
...0 kHz Smartâ„¢ Sensor is an ultrasonic underwater temperature and depth sensor capable of operation...
EchoRangeâ„¢ 200 kHz Smartâ„¢ Sensor Products

Ultrasonic marine temperature and depth sensor

Ultrasonic marine temperature and depth sensor
...choRange Smart Sensor is an ultrasonic underwater temperature and depth sensor that transfers its...
Hybrid CTD Sensor

Cutting-edge conductivity, temperature & depth sensing in a low-SWaP footprint

Cutting-edge conductivity, temperature & depth sensing in a low-SWaP footprint
...ss temperature sensors....
UL-CTD Sensor

Advanced conductivity, temperature & depth sensor with low power consumption

Advanced conductivity, temperature & depth sensor with low power consumption
...of third-party sensors can be integrated via A/D and serial interfaces. Data can be output via USB,...
Ocean CT Sensor

Cost-effective conductivity & temperature measurement for shallow waters

Cost-effective conductivity & temperature measurement for shallow waters
...-cost Ocean CT sensor provides a highly accessible solution for reliable conductivity and...
D270 Echosounder

Versatile single-beam echosounder for bathymetric survey

Versatile single-beam echosounder for bathymetric survey
...er temperature sensor that enables real-time sound velocity correction for enhanced depth...
SVP1500 Sound Velocity Profiler

High Accuracy of 0.05 m/s for Underwater Exploration

High Accuracy of 0.05 m/s for Underwater Exploration
...ions including underwater mapping and surveying and marine construction. With a high sampling rate,...
SVS1500 Sound Velocity Sensor

Real-Time Sound Velocity Sensor for USV & ROV Underwater Survey

Real-Time Sound Velocity Sensor for USV & ROV Underwater Survey
...sound velocity sensor that utilizes advanced time-of-flight measurement technology and digital...
Vigilant FLS® – Forward Looking Sonar

FLS for USV & UUV navigation and collision avoidance

FLS for USV & UUV navigation and collision avoidance
...ne waters. The underwater sonar sensor provides timely alerts for threats below the surface,... ...picture of the underwater environment surrounding the vessel, providing greater situational...

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Cellula Robotics

Cutting-Edge Autonomous Underwater Vehicles & Subsea Robotic Systems

FIBERPRO

Tactical-Grade Fiber Optic Gyros & FOG IMU for UAVs & Autonomous Vehicles

VectorNav Technologies

High-Performance Inertial Navigation Systems (INS) for Unmanned Systems

Exail

Inertial Navigation & Positioning Technology for Unmanned, Autonomous Systems

Teledyne Marine

Autonomous and Unmanned Marine Vehicles: USV, AUV, Marine ROV; Profiling Floats & Towed Systems

Advanced Navigation

Software-Defined Inertial Navigation Systems (MEMS & FOG), and Acoustic Positioning Solutions

Inertial Labs, a VIAVI Solutions Company

Inertial Navigation Sensors: MEMS IMU, Accelerometers, Gyroscopes, AHRS, GPS-INS & Point Cloud Generation

SBG Systems

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Teledyne Valeport

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EMCORE Corporation

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Gladiator Technologies

MEMS Inertial Sensors: IMUs, GPS-Aided INS, Gyroscopes, Accelerometers, AHRS

Sonardyne International

Tracking, Navigation, Positioning and Communication Sensors for AUV, ROV, USV

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D-2 Inc

Conductivity, Temperature & Depth (CTD) Measurement Technologies for Unmanned Oceanography & Marine Survey

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Hydrographic Survey Equipment: Multibeam Echo Sounders, Side Scan Sonars, Sound Velocity Sensors & Profilers

Wavefront Systems

Underwater Sonar: Side-Scan Imaging Sonar & Forward Looking Sonar for Obstacle Avoidance & Navigation

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Ocean & Marine Monitoring Systems, AUV & ROV Subsea Batteries

Tronics Microsystems

High-Precision Digital MEMS Accelerometers Gyros for Demanding Unmanned Systems Operating In Harsh Environments

CHC Navigation

GNSS Positioning & Navigation Systems, Mobile Mapping UAV LiDAR & Unmanned Surface Vehicles

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MEMS Inertial Sensor Solutions, IMUs, Gyroscopes and MEMS Accelerometers for Unmanned Vehicles

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Weather Monitoring Stations, Marine Transducers, Side-Scan Sonar & Underwater Altimeters

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