RJE’s cost-effective acoustic beacons are available in a wide variety of options to meet any requirement. With different frequencies, activation methods, battery life options, and more, the products offer solutions for any marking and relocation situation. The acoustic beacons are used for underwater marking and locating equipment and RJE’s receivers/interrogators can be mounted on subsea vehicles, used from the surface, or operated by a diver. RJE International specializes in customization, and we can create a pinger/transponder for any specific task. If you need an emergency location beacon for your subsea vehicle or towfish, marking equipment moorings, or tracking divers during training, RJE has the equipment you need.
Underwater Beacon with Power Loss (ULB-362 PL) – This underwater beacon can be externally activated through an underwater connector. Ideal for emergency relocation of ROVs, AUVs, and towed bodies, the ULB-362PL automatically activates when a relay closes on the vehicle due to power loss.

Full Ocean Depth Acoustic Location Beacon (ULB-362) – The ULB-362 is a compact, cost-effective, full ocean depth underwater emergency location beacon designed for applications where size is critical. Available in 27kHz, 37kHz, and 45 kHz, the ULB-362 can send an acoustic signal for up to 90 days.

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Underwater Beacon Datasheet (ULB-362)
Up to 25-hour mission duration
Speeds up to 4.2 knots
Increased module payload capacity
Search and recovery
Hydrography
Deep sea mineral exploration
Marine & Fisheries research
The Pathfinder DVL provides an array of advanced internal algorithms and features you’d typically expect to find only in higher-end solutions.
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