Designed to work with the ODAC Outdoor Ceiling and Pedestal Mounts. Built to withstand rain, humidity and ocean air, sun exposure and high winds. Windcompatible to 2000 ftlbs maximum moment force used in engineering calculations to ensure a wide range of install configurations meet local safety requirements. Contact Legrand AV Customer Care for additional information. Column provides 12 of adjustment ranges at 1 increments between 3 and 4 feet 91.4 121.9 cm for ceiling installations. 12 of adjustment ranges at 1 increments Weatherproof design meets UL 2442 Part 2 Suitable for Outdoor Use with corrosion resistant paint, UVrated plastics and stainlesssteel hardware. Only works with Chief outdoor rated mounts and plates.