• Wireless outdoor temperature (°F or °C)
• Monitors indoor temperature (°F or °C)
• Moon phase
• Atomic time and date with manual setting
• Automatically updates for Daylight Saving Time (on/off option)
• 12/24 hour time display
• Perpetual calendar
• Time zone setting
• Time alarm with snooze
• 4 languages to choose from: English, French, German, Spanish
• Wall hanging or free standing
• Low battery indicator for both display and temperature sensor

• Wireless outdoor temperature range: -39.8°F to +139.8°F (-39.9°C to +59.9°C)
• Indoor temperature range: 14°F to 100°F (-9.9°C to 37.8°C)
• Transmission range: up to 330 feet (100 meters)
• Transmission frequency: 915 MHz
• Receiver: 2 "AA" Alkaline batteries
• Wireless sensor: 2 "AA" Alkaline batteries

This digital clock with two rectangular LCD screen from La Crosse technology offers multiple functions that allow you to view date, time and day of week. Depending on your settings the top screen displays the time either a 12-or 24-hour format. The display also shows the radio icon that indicates the strength of the WWVB signals. It also has an alarm facility with snooze function. The Lower LCD screen displays the indoor and outdoor temperature with one of twelve moon phase icons. The day of the week can be seen in your preferred language - English, French, German and Spanish. While the temperature can be view in either Celsius or Fahrenheit.  It measures the indoor temperature from 14 to 100 degrees F and the inbuilt outdoor sensor has 915MHz frequency that shows temperature from up to 330 feet ranging of –31.9 to +139 degrees F. To operate this clock you will require four AA batteries (not included). This WS-8418U-IT atomic digital wall clock comes with one-year limited warranty. The clock measures 10-1/4 inches wide by 1-1/5 inches deep by 9-3/4 inches high and the sensor 1-1/2 inches wide by 4/5 inches deep by 5 inches high.