ACR SM-3 Automatic Cob Buoyant Marker Light Strobe USCG/SOLAS - 3947
Manufacturer Part #: 3947
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ACR SM-3 Automatic Cob Buoyant Marker Light Strobe USCG/SOLAS - 3947
Enhance onboard safety with the ACR Electronics SM-3 Automatic COB Buoyant Marker Light Strobe (3947). Designed for emergency marine situations, this high-intensity strobe automatically activates upon contact with water, providing immediate visual location marking.
Featuring advanced COB (Chip-on-Board) LED technology, the SM-3 delivers powerful, 360° visibility for man-overboard situations, life rings, life rafts, and other emergency applications. Its buoyant, waterproof construction ensures reliable performance in harsh marine environments.
USCG and SOLAS approved, the SM-3 meets rigorous international safety standards—making it ideal for commercial vessels, offshore boats, and recreational craft requiring compliant safety equipment.
Key Features & Performance
This marker light is built to exceed strict international maritime safety standards, ensuring it remains visible and functional in the worst conditions.
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USCG & SOLAS Approved: Meets rigorous safety certifications for use on commercial vessels and life rafts.
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Automatic Activation: Features a gravity switch that triggers the strobe the moment the light is dropped into the water and floats upright.
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High Intensity: Provides a 360° visibility strobe that is significantly brighter than standard life jacket lights.
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Extended Battery Life: Provides over 40 hours of continuous operation at 30 de, ensuring visibility long after an incident occurs.
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Durability: Constructed from UV-resistant polycarbonate, it is designed to withstand years of exposure to sun and saltwater.
⚙️ Technical Specifications
Brand: ACR Electronics
Model: SM-3
Part Number: 3947
Light Type: Automatic Buoyant Marker Light Strobe
Activation: Automatic Water-Activated
Light Technology: COB (Chip-on-Board) LED
Visibility: 360° Illumination
Certifications: USCG Approved, SOLAS Compliant
Buoyant: Yes
Waterproof Rating: Submersible / Marine Grade
Application: Man Overboard (MOB), Life Rings, Life Rafts
Battery Type: Factory Installed (Non-Replaceable)
Operating Environment: Freshwater & Saltwater
Package Contents
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ACR SM-3 Marker Light: The high-intensity LED strobe unit with a UV-resistant polycarbonate body.
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Mounting Bracket: A dedicated bracket designed to hold the light securely on a bulkhead or railing while allowing for quick release.
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Product Manual: Instructions for testing, battery installation, and USCG/SOLAS compliance details.
ACR SM-3 Automatic COB Marker Light
Not Included (Required for Operation)
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Batteries: This unit requires two AA Lithium batteries (e.g., Energizer Ultimate Lithium). Standard alkaline batteries are not recommended as they do not meet the 40-hour SOLAS temperature requirements.
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Mounting Hardware: While the bracket is included, the specific screws or bolts needed to attach it to your vessel's surface are not provided.
🔧 Installation & Use Notes
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Designed for attachment to life rings, life rafts, and approved flotation devices.
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Unit activates automatically when immersed in water.
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Ensure proper mounting orientation per manufacturer guidelines for maximum visibility.
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Store in an accessible emergency location onboard.
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Inspect regularly for battery condition and housing integrity.
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Replace unit according to manufacturer service life recommendations or after deployment.
Manufacturer : ACR Electronics
Manufacturer Part No : 3947
ACR SM-3 Automatic Cob Buoyant Marker Light Strobe USCG/SOLAS - 3947 is backordered and will ship as soon as it is back in stock.
ACR SM-3 Automatic Cob Buoyant Marker Light Strobe USCG/SOLAS - 3947
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