They'll provide forecasting and alert you to dangerous winds and impending storms as well as when there is good sailing ahead. With a hygrometer you get temperature, barometric pressure and humidity all in one device. Rain gauges can really come in handy, especially when a big storm is coming. Clocks, barometers, thermometers, and anemometers are stylishly designed for display and are practical as well. Wireless weather instruments are also included to give you all the information you need.