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| The most effective avalanche transceiver on the market due to its extremely directional and precise locating system. 3 LED lights give a visual clue to the signal strength to indicate direction and distances, plus a Range Selector LED light signals you when to turn down to a lower range setting. The F1-ND has an effective range of up to 90 m. Built-in self testing ensures fail safe operation. Features include: 2 point body harness, built-in battery check, speaker, headphone jack, tapered, contoured body that is easier to wear and store. Operates on the 457 kHz frequency and is compatible with dual frequency units, but is NOT compatible with older 2.275 kHz single frequency units. |