The brass Orion Barometer is a smaller version of our most popular traditionally styled Atlantis Barometer. Both barometers incorporate a screw bezel which allows easy access to components for adjustment. The aneroid barometer movement is fully adjustable, temperature compensated with both inch and millibar scales. This classic brass barometer is housed in a solid, forged brass case that is hand polished and flawlessly lacquered. Slightly smaller in size than many barometers, the Orion is perfect for bulkheads with less space available for mounting.