Sentinel is an underwater Intruder Detection Sonar (IDS) system developed to protect ports, naval facilities, vessels, and critical waterside infrastructure from subsea threats including divers, swimmer delivery vehicles, and Unmanned Underwater Vehicles (UUVs). Designed for continuous autonomous operation, the system establishes a configurable underwater security perimeter capable of detecting divers and UUVs at ranges of up to 1,000 metres and crewed underwater vehicles at distances of up to 1,500 metres. Its advanced Simultaneous In-band Active and Passive Sonar capability (SInAPS®) enables reliable detection and classification of both active and passive threats in demanding maritime security environments without requiring sonar-trained operators.
Using advanced onboard processing and automated tracking algorithms, Sentinel IDS continuously analyses acoustic data in real time to detect, classify, and monitor multiple underwater contacts simultaneously while reducing false alarms caused by marine life and environmental noise. Integrated Active Passive Track Correlation (APTC)® functionality improves target verification and accelerates response times, providing operators with a clear and actionable operational picture. Suitable for military bases, ports, harbours, commercial vessels, private yachts, and critical infrastructure protection, the scalable system supports networked sonar deployment, integrated command-and-control compatibility, and autonomous 360-degree underwater surveillance.
Specifications:
| Sonar range: | Up to 1,500 m |
| Diver detection range: | Up to 1,000 m |
| Operational frequency: | 70 kHz |
| Bandwidth: | 20 kHz |
| Source level: | 206 dB re 1 μPa @1m |
| Acoustic cover: | 360° |
| Target bearing accuracy: | Down to 0.35° |
| Target position accuracy: | Within 1 m at 150 m range |
| Dimensions: | 432 x 330 mm (17 x 12 in) |
| Weight: | 45.5 kg |
| Power consumption: | Max 70 W |
