The YASI Surface Marker Buoy (SMB) is a professional-grade, high-visibility signaling device engineered to establish an absolute safety perimeter and clear line of communication with surface support vessels. Serving as your primary tactical deployment asset during ascents, safety stops, and mid-water decompression profiles, the YASI SMB features an advanced self-sealing internal baffle layout that retains full inflation volume even if the buoy is knocked flat on the surface waves. Forged from high-tensile, lightweight technical polymers and outfitted with industry-standard SOLAS-A reflective paneling, this 11.1-liter signaling column ensures maximum visual tracking across long distances, high swell states, and low-light marine environments. Technical Safety Features Advanced Self-Sealing Bottom Entry: Smart internal baffle structure allows for effortless inflation via a regulator second stage or oral inflator, instantly locking gas inside to prevent accidental deflation on the surface SOLAS-A High-Intensity Reflective Tape: Premium, marine-certified SOLAS reflective panels affixed to the apex of the buoy provide maximum retroreflective return under searchlight beams for night or low-visibility tracking Calibrated Over-Pressure Valve (OPV): Precision mechanical pressure release valve automatically exhausts expanding gas during rapid ascents from depth, preventing structural seam ruptures while allowing manual pull-dump venting International Maritime Signaling Print: High-contrast "Diver Below" warning graphics and explicit dive flag icons are permanently sublimated into the textile matrix to maximize recognition by nearby boat traffic Heavy-Duty Top-Mounted D-Ring: Rugged, corrosion-free plastic D-ring anchor point provides a secure attachment interface for backup slate lines, strobe markers, or surface emergency lights Ultra-Compact Rolled Profile: Streamlined internal volume compresses down to an incredibly tight 8cm diameter, tucking away cleanly inside drysuit thigh pockets or clipping seamlessly to a technical harness configuration Technical Specifications & Volumetric Parameters Technical Parameter Material & Construction Standard Component Classification Self-Sealing High-Visibility Surface Marker Buoy (SMB) Fully Inflated Dimensions 142cm (Length) x 21cm (Width) Stowed / Rolled Dimensions 26cm (Width) x 8cm (Diameter) Internal Gas Volume 11.1 Litres (High-Buoyancy Column) Net Dry Weight 300g (Lightweight Expedition Profile) Chromatographic Safety Profile High-Visibility International Safety Orange Technology SELF-SEALING GAS RETENTION & PRESSURE EQUALIZATION Standard open-ended surface markers suffer from a critical failure vector: if the buoy falls over in heavy surface swells or if tension on the reel line is briefly relaxed, the air inside immediately vents out the bottom, causing the marker to sink out of sight. The YASI Surface Marker Buoy overcomes this limitation through its integrated one-way internal baffle matrix. Gas enters smoothly from beneath but is blocked from exiting along the same path. Combined with a robust over-pressure valve that releases excess gas as ambient hydrostatic pressure drops during ascent, the buoy arrives at the surface perfectly rigid and maintains its full 11.1-liter volume to give your surface tracking team an uncompromised visual target.

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The Mares Cruise Safety Bag is a compact and practical solution for essential dive safety equipment. Designed to be easily attached to your gear, this kit includes a high-visibility signalling buoy, a reflective mirror, and a 10 metre line with weight for quick deployment. With its durable construction, secure closure, and convenient attachment system, it provides peace of mind for divers in a variety of conditions. COMPLETE SAFETY KIT – Includes signalling buoy, reflective mirror, and 10m line with weight for essential safety use HIGH VISIBILITY BUOY – Bright marker buoy helps indicate your position clearly on the surface CONVENIENT ATTACHMENT – Rear fastening system and side hook allow easy connection to BCD, belt, or equipment COMPACT & PORTABLE – Small, lightweight design (15.6 x 11 x 6 cm) fits neatly with your dive gear DURABLE DESIGN – Features Velcro closure and reflective piping for secure storage and enhanced visibility

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The Seac Marker Buoy Orange is a practical safety accessory designed to signal a diver’s presence during surfacing or safety stops. Highly visible on the surface, this emergency marker buoy measures 125 x 16 cm when deployed and includes a 25 metre line for controlled ascent and positioning. Supplied with a convenient storage pouch featuring side hooks, it can be securely attached to a BCD for easy access during dives. High Visibility Orange – Bright colour enhances surface visibility for improved diver safety. 125 x 16 cm Size – Provides clear and effective surface marking when fully deployed. 25 Metre Line Included – Allows controlled deployment during ascent or safety stops. Compact Storage Pouch – Handy bag with lateral hooks for secure attachment to BCD. Essential Safety Accessory – Suitable for recreational and professional divers requiring reliable surface signalling.

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The Seac Diver Alert Marker Buoy is a high-visibility safety accessory designed to enhance diver awareness and surface signalling. Manufactured from durable materials and finished in bright red, it ensures excellent visibility in open water. Easy to inflate and compact to store, it is an essential addition to any diver’s safety equipment for decompression stops or surface identification. High Visibility Design – Bright red colour improves surface visibility in varying sea conditions. Multiple Inflation Options – Can be inflated via second stage regulator, BCD hose QD fitting or orally. Overpressure Safety Valve – Prevents over-expansion and maintains controlled buoyancy. Compact & Portable – Folds to approximately 30 x 17.8 x 8 cm with Velcro securing system for easy storage. 117 cm Inflated Height – Provides effective signalling and stability during decompression stops or when assistance is required.

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The TUSA TA1102 Rescue Marker and Surface Marker Buoy (SMB) is an essential, life-safety signaling tool engineered for scuba divers of all operational experience levels. Standing as an invaluable asset during drift dives, open-ocean ascents, or emergency staging, this high-visibility safety tube alerts surface vessels and shore support to your exact location in the water column. Designed to be easily deployed from depth or at the surface, it provides a stable visual beacon that dramatically enhances team coordination and diver tracking in rough seas or strong currents. Rescue Marker Features 71-Inch High-Profile Column: Generous 1800mm length ensures the marker stands tall above surface chop, maintaining a clear line of sight for boat captains Regulator Inflation Path: Designed to be quickly and efficiently inflated at depth using exhaust gas from a primary or secondary regulator second stage Internal Check Valve Architecture: One-way structural check valve stops expanding air from escaping through the bottom opening during ascent Dedicated Inflator/Deflator Valve: Features an integrated mechanical valve for controlled manual topping-off or rapid post-dive deflation and packing Streamlined Stowage Footprint: Roll-up configuration allows the buoy to sit neatly tucked inside a BCD pocket or clipped off to a D-ring until deployment Physical Dimensions Dimension Parameter Imperial Metric Standard Metric Total Vertical Length (L) 71 in 1800 mm Horizontal Column Width (W) 5 in 135 mm Technology ONE-WAY CHARGED CHECK VALVE SYSTEM The base of the TA1102 features an advanced one-way check valve mechanism. When a diver purges regulator air into the bottom opening, the valve opens smoothly to receive the volume, then immediately snaps shut as internal pressure builds. This prevents the expanding gas from venting out when the buoy hits the surface or tosses in heavy swells, keeping the column fully pressurized and rigid. DUAL-FUNCTION OVER-PRESSURE & TRANSIT VALVE Equipped with a precision-engineered mechanical inflator/deflator valve, the marker allows for flexible operational handling. It permits manual oral inflation at the surface if required, while acting as an intuitive exhaust port for quick deflation when packing up. The structural assembly is built to withstand high internal pressures as ambient pressure decreases during ascent from deep wrecks or reefs. TACTICAL HIGH-VISIBILITY SIGNAL GEOMETRY The specialized nylon skin of the rescue marker is dyed in a high-contrast, light-reflective safety shade engineered to penetrate sea spray and low-visibility marine haze. Spanning nearly six feet in height, this geometric column provides surface crews with a highly trackable reference point, ensuring a safe, coordinated pickup at the end of a drift profile.

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