Defence
Technologies for underwater and marine monitoring and seismic sensing
Speak to the experts
01767 651058
Discuss your project
Our range includes vibration, seismic, and underwater sensors from leading manufacturers, trusted for reliability and accuracy in mission-critical environments.
Marine and Seismic Applications
We provide sensors for a variety of applications, including:
Towed and stationary underwater arrays
Sonobuoys and monitoring stations
Shipboard machinery and hull monitoring
Seismic and infrastructure monitoring (perimeter, road, and border security)

Vector Sensors
Vector sensors measure both acoustic pressure and particle acceleration, providing directional data for underwater target detection. They are used in towed and stationary arrays, harbour security, and ISR operations, offering reliable performance for long-term deployments in harsh marine conditions.
Key Features & Applications:
Measures three orthogonal-axis particle acceleration and acoustic pressure
Integrated preamplifier for low-noise signal output
Accurate directional detection in marine environments
Supports towed and stationary sensor arrays
Commonly used for harbour and inlet security, coastal surveillance, and underwater research
Ideal for defence ISR operations and mission-critical monitoring
Hydrophones
Hydrophones are rugged underwater microphones for acoustic monitoring in marine environments. They capture underwater sound for defence, research, and environmental applications.
Key Features & Applications:
Self-amplified and shielded for low-noise operation
Operates in both freshwater and seawater conditions
Ideal for naval and maritime surveillance
Used in ship noise studies, machinery monitoring, and environmental research
Supports sonar calibration and testing
Available in small versatile models and deep-water units
Seismic Accelerometers
Seismic accelerometers detect low-frequency vibrations for structural monitoring and security applications. They are widely used where high sensitivity and low noise are critical.
Key Features & Applications:
Measures low-amplitude, low-frequency vibration
Suitable for perimeter, road, border, and underground monitoring
Structural health monitoring of bridges, towers, and buildings
Supports earthquake detection, geophysical studies, and industrial vibration analysis
Reliable in long-term deployments and mission-critical operations
Underwater Accelerometers
Designed for continuous submersion, underwater accelerometers are built to withstand high pressure and extreme conditions.
Key Features & Applications:
Titanium or stainless-steel housings for durability
Monitors hulls, machinery, and subsea structures
Used in offshore defence applications and underwater research
Supports long-term deep-sea deployment
Compatible with signal conditioners and monitoring systems
Literature, specialized articles and publications
Advanced Sensing Technologies brochure
Our vector sensors have been mentioned in the following articles:
- Discovery of Sound in the Sea – Vector Sensor
- Modifying a Military-Grade Glider for Coastal Scientific Applications
- The Use of Vector Sensors for Underwater Port and Waterway Security
- A Miniature Vector Sensor for Line Array Applications
- Experimental Demonstration of Underwater Acoustic Communication by Vector Sensors
- A Theoretical and Experimental Investigation of Low-frequency Acoustic Vector Sensors