Trident Aquacraft Aluminum Underwater Noise Device

Get a dive buddy's attention without reaching for a tank banger with the Trident Aquacraft Underwater Noise Device. Its lightweight aluminum body is easy to carry, and a simple side-to-side shake produces an audible underwater signal for routine buddy communication.

Key features

• Lightweight aluminum construction
• Approximately 7 inches in overall length
• Produces a signal when shaken side to side
• Attached safety lanyard helps keep it secure and accessible
• Trident part number D669

Attach the lanyard where the device can be reached without creating an entanglement hazard. This is a supplemental attention signal, not a substitute for established hand signals, a dive plan, or required emergency signaling equipment.