{"product_id":"halcyon-big-dive-alert-marker-closed-circut","title":"Halcyon Big Closed-Circuit Diver Alert Marker (DAM) – 4.5 ft Surface Marker Buoy","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHalcyon Big Closed-Circuit Diver Alert Marker (DAM)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is an essential piece of safety equipment designed to maximize diver visibility and provide dependable emergency flotation during ascents, decompression stops, and surface signaling. Standing \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1.4 meters (4.5 feet)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e tall and providing \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18 kg (40 lb)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e of lift, this large-capacity closed-circuit marker offers outstanding visibility in rough seas and demanding dive conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEngineered for both recreational and technical divers, the Big Closed-Circuit DAM features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eclosed-bottom design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e that allows it to remain fully inflated while providing stable buoyancy at the surface. The integrated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eover-pressure relief valve\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows safe deployment from depth by automatically venting expanding gas during ascent, while the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebottom dump valve\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e enables controlled deflation after use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eHalcyon's exclusive \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNo-Lock® connector\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows divers to inflate the marker orally or directly from a low-pressure inflator hose, providing multiple deployment options underwater. Once inflated, the marker remains highly visible thanks to its tall profile and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCoast Guard-approved SOLAS reflective tape\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, helping surface support crews quickly locate divers in low-light conditions or rough seas.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen deflated, the marker folds compactly to fit inside a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHalcyon thigh pocket\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e or \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMC Storage Pak\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, ensuring it is always available without adding unnecessary bulk to your dive equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAvailable in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eOrange\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eYellow\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eShocking Pink\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, Halcyon Diver Alert Markers allow divers to carry different colors for routine surface location and emergency signaling, creating a clear visual communication system for dive teams and support vessels.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLarge closed-circuit diver alert marker\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1.4 m (4.5 ft) tall for maximum surface visibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProvides 18 kg (40 lb) of emergency lift\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasily deployed from depth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIntegrated over-pressure relief valve\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBottom dump valve for controlled venting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHalcyon No-Lock® LP\/oral inflation connector\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOral or low-pressure inflator hose compatible\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCoast Guard-approved SOLAS reflective tape\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact storage in Halcyon thigh pockets or MC Storage Pak\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable in Orange, Yellow, and Shocking Pink\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt for recreational and technical diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGenuine Halcyon diving equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eClosed-Circuit Diver Alert Marker (Surface Marker Buoy)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eHeight\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e1.4 m (4.5 ft)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eLift Capacity\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e18 kg (40 lb)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eInflation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eOral Inflation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow-Pressure Inflator Hose\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHalcyon No-Lock® Connector\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003ePressure Relief\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIntegrated Over-Pressure Relief Valve\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDeflation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBottom Dump Valve\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eReflective Material\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCoast Guard-Approved SOLAS Reflective Tape\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eStorage Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHalcyon Thigh Pocket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHalcyon MC Storage Pak\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eAvailable Colors\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eOrange\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eYellow\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eShocking Pink\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSurface Signaling, Safety Stops, Decompression Diving, Emergency Flotation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eHalcyon\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eIncluded Components:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHalcyon Big Closed-Circuit Diver Alert Marker\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cem\u003e\u003cspan\u003eLow-pressure inflator hose and spool sold separately.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eIdeal For:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRecreational scuba diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTechnical diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCave diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWreck diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDecompression diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOffshore diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDrift diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBoat diving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEmergency signaling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface support operations\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Halcyon","offers":[{"title":"Big Diver's Alert Marker 4.5' (1.4 m) long closed circuit orange","offer_id":45824698122462,"sku":"14.030.040","price":153.0,"currency_code":"USD","in_stock":false},{"title":"Big Diver's Alert Marker 4.5' (1.4 m) long closed circuit pink","offer_id":45824698155230,"sku":"14.030.041","price":153.0,"currency_code":"USD","in_stock":false},{"title":"Big Diver's Alert Marker 4.5' (1.4 m) long closed circuit yellow","offer_id":45824698187998,"sku":"14.031.040","price":153.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/2092\/4638\/files\/HalcyonBigDiveAlertMarker4.5_ClosedCircutOrange.png?v=1786403281","url":"https:\/\/orangecountydivers.com\/de\/products\/halcyon-big-dive-alert-marker-closed-circut","provider":"Orange County Divers","version":"1.0","type":"link"}