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SOS Signal Light Portable YH-6826 Field Survival Help Signal Lamp Sturdy Lightweight Warning Signal Light Warning Flashlight for Camping,Hiking(Distress Light): Amazon.com: Industrial & Scientific
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Amazon.com : Sirius Signal C-1002 SOS Two-Color/Infrared LED Distress Signal with Daytime Distress Flag and Whistle – USCG Approved : Sports & Outdoors
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