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NAMi Autonomous acoustic float for long-term underwater noise monitoring
NAMi

NAMi from MetOcean Telematics is an autonomous, long-endurance acoustic float engineered for extended observation of underwater soundscapes. Utilizing a precision hydrophone and Iridium-based telemetry, it autonomously records and transmits acoustic data to support marine mammal studies, noise impact evaluations, and environmental assessments in challenging offshore or protected waters.

Building on MetOcean’s proven PABLO system, NAMi integrates ruggedized construction with flexible profiling capability and satellite communications for global deployment. Its adaptable mission settings, endurance exceeding one year, and capacity to detect acoustic signatures between 10 Hz and 2.4 kHz, make it a trusted tool for researchers and regulators conducting conservation, compliance, and noise mapping programs worldwide.

Specifications:

Depth Rating: Up to 1000 m (3281 ft)
Detection Radius: Up to 5 nautical miles (9.26 km)
Deployment Life: 12+ months, mission-configurable
Buoyancy: Hydraulic control system
Battery: 40 x Saft LSH20 lithium cells
Connectivity: Iridium Certus 100 (via Iridium 9770)
Hull Material: Hard anodized aluminum
Height: 1692 mm (66.6″) with antenna
1240 mm (48.8″) without antenna
Mass: 25 kg (55 lb)
Activation: Removable magnet
End-of-life: Auto-scuttling or GPS enabled recovery