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The marlin spike knife is used by sailors to tie knots
Effortless setup
where two lines cross or at the anchor roller
The EnviroMonitor app will walk you through the steps to set up and mount each component of your system
WindTrak™ AV Antenna Mount Wind Vane - SKU 3160 Sensor Type_Soil Moisture The marlin spike knife isWindTrak wind vanes continue to offer exceptional performance at the best value of any wind indicator worldwide. The secret is in the sapphire jewel suspension bearing, large fin low inertia vane, and easy to read, fully adjustable tacking tab system. WindTrak AV installs onto most whip antennas, including Metz and Shakespeare brands, with a whip diameter less than 1 8 (3 mm). Combine two installations into one to reduce masthead clutter, weight, and
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