Weather Station:Able to predict the weather for the next 8 hours: sunny, cloudy, overcast, light rain (snow), heavy rain (snow). Outdoor/Indoor Use:Able to monitor indoor and outdoor temperature and humidity simultaneously. Know the outdoor weather just by glancing at the device. Practical Function:The time can be set in 12/24 hours optional; switchable units between Celsius and Fehrenheit; Comfort level indicator icons can show you five conditions ranging from comfortable to uncomfortable. Support up to 3 Sensors:This weather station allows 3 wireless sensors to work simultaneously. You can buy two more sensors to monitor the temperature of different places. LCD Backlight:The backlight can turn on for 15 seconds if powered by batteries; and with 4 adjustable brightness levels, it can keep lighting if powered by an adapter.