Although not Coast Guard-approved, the rescueME EDF1 model from Ocean Signal ($146, oceansignal.com) is well worth consideration as an addition to your distress-signal inventory. The size of a medium flashlight with a three-level-brightness, red-flashing LED, plus a separate SOS setting, the red LED may be as attention-getting as the white C-1001 SOS Distress Light. The integrated battery will run for hours. Replacement batteries must be purchased from Ocean Signal ($40).
