This functional set gives the user three essential elements in the weather equation - air pressure, air temperature and relative humidity. Three traditional brass instruments are mounted on a rich solid mahogany plaque. The easy-to-read instruments are a quartz clock, a barometer and a comfortmeter which is a combination thermometer/hygrometer. It mounts vertically or horizontally on a wall in the home, office, or on the bulkhead of a boat. It's measurements are 12" x 4.25" and it weighs 15.5 oz. It comes with mounting hardware & a fresh battery.