Real-time backyard weather with La Crosse Technology Digital Color Weather Station. Animation adjusts personal forecast based on changing pressure. Monitor temperature and humidity levels and current trends. Set personal alerts for HI/LO temperature levels and features accurate atomic time with indicators for low battery power. Batteries required for power loss (not included) and wireless sensor operation. Extremely helpful knowing room climate as well as your current outside temperature along with humidity levels. Displays barometric pressure and past 24-hour historical graph. The fully functional home 0.65 lb weather station makes an excellent addition for the home!