00638A2 - Chaney / AcuRite Digital Weather Center uses patented Self-Calibrating Technology to provide your personal forecast of 12 to 24 hour weather conditions. Self-Calibrating Forecasting is generated from weather data measured by a sensor in your yard - giving you the most accurate forecast available for your exact location. The bold, easy to read LCD screen includes indoor / outdoor temperature and humidity with daily high /low information, heat index, wind speed / chill, multi-variable history chart, moon phase, atomic clock and calendar. Atomic clock and calendar are radio-controlled to maintain the correct time and date with split-second precision, and automatically adjust for daylight saving time (DST). Display stands upright for tabletop use or is wall-mountable. The wireless outdoor sensor features 3 different technologies in one easy-to-mount unit: thermometer, hygrometer, wind speed anemometer. One-year limited warranty.