ARC SM-3 Strobing Crew-Overboard Marker Light, 3947

$145.30 On Sale

Crew-Overboard Marker Light, ACR ResQLink 400 3947
SKU: 561601
Mfg# 3947
LFS# ACR3947
UNIT: Each
Size: 9.9” (253 mm) Length x 2.2” (56 mm) DiameterWeight: 0.90 lbs. (406 g) Light with Batteries & BracketVisibility Miles: 2 miles
In Stock - Ships out in 1 Business Day


ARC SM-3 Strobing Crew-Overboard Marker Light is designed to keep your boat crew safe and your boat USCG compliant. The ARC SM-3 (pn 3947) is rugged built for commercial maritime applications including petro-marine, workboats, cruise liners, tugs and workboats, supply vessels, cargo vessels, passenger vessels, fishing charters etc. The SM-3 is easy to deploy simply throw SM-3 overboard or turn upright and strobe light will automatically begin to flash.

Key Features

  • SOLAS / MED / USCG Approved for commercial vessels
  • Over 3 candela with a 360°, high intensity LED strobe light with 2 mile visibility
  • 24 Hours of operational life at -1° C (30° F)
  • 40 Hours of operating life at 30° C (86° F)
  • User replaceable batteries (2 AA L91 lithium required but not included)
  • Automatically activates when deployed and in the upright position
  • Mounting bracket fits into previous SM2 hole pattern for easy retrofit installations
  • UV resistant polycarbonate case
  • Light weight, compact, and rugged
    • 9.9" (253 mm) Length x 2.2" (56 mm) Diameter
    • 0.90 lbs. (406 g) Light with Batteries & Bracket

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. Do not use in connection with drinking water. Wash hands after handling. For more information, go to



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Our legendary products are supported by an equally legendary promise. The length of the warranty may vary by product, please refer to your product for the exact terms and conditions of the warranty for your purchase.


  • All returns must be received within 30 days of receipt of the order.
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