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SDS Watersports are a award winning diving equipment retailer, trusted supplier & warranty repair centre for the industries top diving equipment brands & the only retail dive shop to win the diver magazines retailer of the year award seven times.

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Mares Diver Alert SMB Surface Marker Buoy

The Mares Diver Alert SMB Surface Marker Buoy has high-visibility orange panels and a reflective strip, with an automatic seal system and special system which allows inflation with a BC hose, the Diver Alert offers the very latest development in signaling devices to provide greater safety, even in the most extreme conditions.

The Divers Alert emergency marker buoy has different colors on its sides: light orange and warning yellow are the colors that appear best at different times of day, under varying weather conditions, because they contrast with the water and with reflections and are consequently visible at great distances.  It's made of especially rugged PVC, reads "diver below", and also has a flag, in conformity with national and international specifications.  Particularly during night dives. 


  • 180cm tall and 15cm wide for high visibility
  • Solar reflective tape
  • Automatic seal system
  • Oral inflation connector for LP BCD hose
  • Pressure release valve
  • Dedicated pocket for light
  • Stainless steel dring

SDS Free Delivery Offer 

Get Free England Mainland Delivery On All Orders Over £300.00

Our free delivery offer will be automatically added once your cart total reaches £300.00 or above (*Cylinders & Compressors excluded). We prefer to ship via Royal Mail & Parcelforce within the UK, Scotland Mainland & Wales but if you require an alternate delivery method please contact us.

Our delivery charges are displayed and added to your order and the total amount to pay is displayed twice before you complete your order either on the cart page or during checkout.

England Mainland delivery on all orders under £300.00

Small Items, Sent via Royal Mail 1st/2nd Class Signed For

Medium - Large Packages, Sent via 24 hour recorded courier service

Extra Large Items, Sent via 24 hour recorded courier service - Add £10.00 per additional 20Kg

Additional charges may be needed for certain locations, for example Scotland Highlands, Islands and Ireland.

*Please Note: Cylinders and compressors are excluded from this offer because of the higher weights.

See Our Delivery Information Page For All Details.

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  • RRP £88.00
  • OUR PRICE £74.50

Product Code: 415743

Tags: Mares.SMB