Here is a handy tool that lets you activate a visual distress signal when you are in trouble. The Sirius Signal C-1003 Beacon emits a bright signal visible up to 10 nautical miles. Its orange distress flag is ideal for daytime use. The C-1003 flashes SOS signal for up to 60 hours.
This SOS beacon is designed to float higher in comparison to older models. The Sirius Signal SOS C-1003 has a light output of 75 candelas.