Large LCD display with LED backlight. Built-in digital thermometer, digital hygrometer, snooze alarm clock and calendar functions (month, date and day). Weather forecast with icons: Sunny, Slightly Cloudy, Cloudy, Rainy. Shows temperature, humidity, hydrothermal graph, time and perpetual calendar with day of week simultaneously. Memory of MAX & MIN measuring value. Selectable 12-hour / 24-hour displaying format. Selectable C / F unit. Elegant design with silver bezel & desktop stand or wall mount option. Temperature range: 0 ~ 50C (32 ~ 122 F) Humidity range: 20% ~ 99%RH Resolution - Temperature: 0.1C (0.1F) Resolution - Humidity: 1%RH Accuracy - Temperature: 1C (1.8 F) Accuracy - Humidity: 5%RH (40% ~ 80%) Power supply: 2 x 1.5V AAA battery (Not Included).