Features: Experience precise pressure measurement with the Brass Barometer, crafted from high quality brass for durability and accuracy, making it a essential tool for Maritimes navigation. This barometer features a brass body and mineral glass face, with a double bellow holosteric movement that provide reliable readings in both inches and millibars. For professional sailors, Maritimes enthusiasts, and weather aficionados, this barometer offers high precisions and efficiency in monitoring changes. Perfect for use on sailing ships, yachts, and coastal homes, the Brass Barometer help predict weather conditions, ensuring safety during sea voyages and fishing trip. Its elegant and construction make it not only a functional instrument but also a beautiful of marine decors, adding a touch of sophistication to any space. Specifications: Material: Brass Diameter: About. 125x45mm/4.92x1.77in Package Includes: 1pc Maritimes Barometer note: 1xAA Battery Requires(NOT Include). Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.