Features temperature in Fahrenheit and Celsius from -58 F to 158 F; humidity from 20% to 99%; weather forecast; 12/24hr clock with alarm and snooze; and calendar with day, week, month, year, and lunar phase. Requires 1 LR1130 battery (included). Measures 2-1/8 x 4-1/4 x 1-1/8. Gift boxed.