The ACR SM-3 Automatic COB Buoyant Life Buoy Marker Light USCG/SOLAS (3947) is a high intensity LED strobe which provides 360° visibility for approximately 2 miles. The ACR SM-3 facilitates rescue by automatically activating and beginning to strobe when in the water, working for over 40 hours at 30°C (86°F) or over 24 hours at -1°C (30°F).
THe ACR SM-3 LifeBuoy Automatic Strobing Crew-Overboard Light (3947) is perfect for commercial marine, petro-marine, cruisers, and any other application needing a reliable Crew Overboard Marker (COB) light, the SM-3 floats upright in all conditions, ensuring it will keep shining when you need it the most.
With a minimum light intensity of 3 candelas throughout its entire operating life, this high intensity LED strobe clearly marks a crew-overboard site with each brilliant flash. It automatically rights itself and activates when in the water, ensuring that activation is never an issue that a crew member in distress needs to worry about. The ACR SM-3 LifeBuoy Automatic Strobing Crew-Overboard Light (3947) operates on 2 AA Lithium batteries and the batteries are user replaceable, allowing the potential for a longer product life than the many disposable lifebuoy lights on the market.
The supplied mounting bracket holds the ACR SM-3 LifeBuoy Automatic Strobing Crew-Overboard Light (3947) secure in the roughest of conditions but it is still readily accessible when needed in an emergency. Additionally, while the SM-3 and its bracket are significantly smaller than the SM-2 counterparts, the SM-3 bracket conveniently maintains the same mounting hole pattern as the SM-2, allowing for easy retrofit with no additional adapter plate required.
The ACR SM-3 Automatic COB Buoyant Life Buoy Marker Light USCG/SOLAS (3947) is USCG/MED/SOLAS approved for use around the world and this durable LED marker light therefore provides an excellent option for vessels needing to meet USCG and SOLAS carriage requirements for lifebuoy self igniting lights. As per USCG and SOLAS requirements for passenger and cargo vessels, at least one-half of the total number of lifebuoys on the vessel must be fitted with a self igniting light. Minimum carriage requirements are based on the length of the vessel and can range from a minimum of four to a minimum of fifteen lifebuoys with self-igniting lights per vessel.
With its easily replaceable Lithium AA battery power source, the SM-3 will give years of service and be ready when called upon.
ACR SM-3 LifeBuoy Automatic Strobing Crew-Overboard Light Features:
- SOLAS / MED Approved
- Bright light in all directions (360° visibility)
- UV-resistant polycarbonate case
- Lightweight and compact in size
- Easy bracket installation
- The bracket is included and maintains same hole pattern as SM-2 for easy retrofit
- Automatically rights itself and activates when in the water
- High intensity LED strobe
- Floats upright in all conditions
- Minimum 40 hours continuous operating life at 30oC (86oF) or over 24 hours at -1oC (30oF)
- User-Replaceable AA Energizer L91 Lithium Batteries (Not Included)
ACR SM-3 Automatic COB Buoyant Life Buoy Marker Light USCG/SOLAS (3947) Specifications:
| Name | SM-3 Lifebuoy Self-Igniting Marker Light |
| Product Description | Strobing Crew-Overboard Marker Light |
| Model Number | SM-3 |
| Application | Commercial maritime applications including petro-marine, workboats, cruise liners, tugs and workboats, supply vessels, cargo vessels, passenger vessels, fishing charters, etc. |
| Size | 9.9” (253 mm) Length
2.2” (56 mm) Diameter |
| Weights | 0.66 lbs (300 g) Light Only
0.71 lbs (330 g) Light with Batteries 0.90 lbs (406 g) Light with Batteries and Bracket |
| Batteries | 2 AA Lithium Batteries (L91) / User Replaceable (Not Included) |
| Material | UV Resistant Polycarbonate |
| Color | International Safety Orange |
| Activation | Automatic gravity switch |
| Operation | Throw SM-3 overboard or turn upright and the strobe light will automatically begin to flash |
| Light Intensity | Minimum of 3 candelas per flash in all directions of the upper hemisphere |
| Visibility | 360o visibility |
| Flash Rate | 50–70 times per minute |
| Buoyant | Yes |
| Lamp | Ultra-Bright LED |
| Operational Life | 40 hours over 3 cd at 30oC (86oF)
24 hours over 3 cd at -1oC (30oF) |
| Drop Test | Drop tested to 76 meters (USCG/SOLAS/MED only call for 30 meters) |
| Warranty | 1 year |
| Approvals | USCG / MED / SOLAS (Click Downloads for a complete list) |
| Mounting Bracket | UV-resistant polycarbonate bracket included / Same mounting hole pattern as previous SM-2 Model for easy retrofit |
The manufacturer does not allow this product to be returned to Nomadic Supply Company. You must contact the manufacturer directly with any issues.
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to