AcuRite 02031RM Weather Station with Forecast/Temperature/Humidity/Moon Phase, White Wireless outdoor sensor measures environmental conditions with precision and accuracy 12 to 24 hour weather forecast; sunny, partly cloudy, cloudy, rain, snow and rain/snow mix Monitor indoor and outdoor temperature (Fahrenheit and Celsius) and humidity (-percent RH) with daily high/low records Intelli-Time clock automatically adjusts for daylight saving time (DST) Electric-Powered display with optional battery backup - adjustable backlight with auto-dim function