DiveAlert DMB4P Surface Marker Buoy with Utility Pocket, Plastic

DiveAlert DMB4P Surface Marker Buoy with Utility Pocket for Scuba Diving

The DiveAlert DMB4P Surface Marker Buoy (SMB) is a compact, durable inflatable buoy designed to help scuba divers communicate their location and improve visibility during diving activities. Featuring closed-circuit construction, this surface marker buoy helps prevent air from escaping after inflation. Divers can inflate it at the surface for visual signaling or additional flotation, or deploy it from depth to create a visible surface reference for boat crews and other water users.

Constructed from durable 200 Denier polyurethane-coated nylon, the DMB4P features a 45-inch length, 5-inch width, and approximately 8 lb lift capacity. SOLAS reflective tape across the top improves visibility during daytime and nighttime conditions, while the integrated over-pressure valve helps release excess air to prevent overinflation. It also includes a utility pocket for a finger spool or small accessories, a top nylon D-ring for attaching a dive light or slate, and a stainless steel bottom D-ring for securing a spool or reel.

Why Choose the DiveAlert DMB4P Surface Marker Buoy

• Closed-circuit construction helps prevent air from escaping after inflation.
• Can be inflated at the surface for visual signaling or additional flotation.
• Can be deployed from depth as a surface marker to communicate a diver's location.
• SOLAS reflective tape improves visibility during daytime and nighttime conditions.
• Integrated over-pressure valve helps prevent bursting from excess internal pressure.
• Utility pocket provides storage for a finger spool or small diving accessories.
• Top nylon D-ring allows attachment of a dive light or slate.
• Stainless steel bottom D-ring provides an attachment point for a spool or reel.
• Durable 200 Denier polyurethane-coated nylon construction for repeated diving use.

Key Features

• Brand: DiveAlert.
• Model: DMB4P.
• Product type: Surface marker buoy (SMB).
• Construction: Closed-circuit design.
• Material: 200 Denier polyurethane-coated nylon.
• Length: 45 inches.
• Width: 5 inches.
• Lift capacity: Approximately 8 lb.
• Reflective material: SOLAS reflective tape across the top.
• Safety feature: Integrated over-pressure valve (OPV).
• Storage: Integrated utility pocket for a finger spool or small accessories.
• Top attachment: Nylon D-ring for a dive light or slate.
• Bottom attachment: Stainless steel D-ring for a spool or reel.
• Inflation methods: BCD low-pressure inflator hose or oral inflation.
• Inflation nozzle: Plastic-tipped inflation valve.
• Available colors: Orange or yellow.
• Application: Underwater deployment, surface signaling, and additional flotation.

Easy Inflation and Deployment

The DiveAlert DMB4P offers convenient inflation options for different diving situations. It can be inflated using a BCD low-pressure inflator hose or by mouth through its dedicated plastic-tipped inflation valve. Its closed-circuit construction helps retain air after inflation, while the integrated over-pressure valve releases excess pressure to help protect the buoy from overinflation. The utility pocket and attachment rings provide convenient storage and connection points for essential diving accessories.

Perfect For

• Recreational scuba divers.
• Technical and advanced divers.
• Boat-based diving operations.
• Divers who need a compact and visible surface signaling device.
• Divers carrying finger spools, reels, and signaling accessories.
• Divers seeking an SMB with multiple attachment points.
• Diving activities requiring improved surface visibility and location marking.

Improve Your Surface Visibility and Dive Signaling

Stay visible and keep essential diving accessories organized with the DiveAlert DMB4P Surface Marker Buoy. Combining durable nylon construction, SOLAS reflective tape, closed-circuit inflation, an integrated over-pressure valve, and practical storage and attachment features, this compact SMB provides a practical signaling option for recreational and technical diving activities.

Important: Always follow the manufacturer's inflation and deployment instructions. Use appropriate buoyancy and line-management techniques when deploying an SMB underwater. The stated 8 lb lift capacity is approximate and should not be treated as a substitute for a properly rated BCD or other primary buoyancy system.