La Crosse Technology 513-1918S-INT Atomic Digital Wall Clock with Indoor/Outdoor Temperature • Monitors indoor/outdoor temperature (deg F/deg C);• Atomic time and date with manual set option;• 12-/24-hour time;• Month/date/day calendar;• Daylight Saving Time automatically updates;• Time alarm with snooze;• Wall hanging or freestanding;• Temperature range: -40deg F to 140deg F;• 10 minute snooze alarm;• 2 calendar modes (weekday or day, month, and date);• Eng/Sp/Fr language options;• Low battery indicator for display and sensor;• Includes sensor;• Requires 3 AAA bullets for clock and 2 AA bullets for sensor;