La Crosse Technology 512 85937 INT Atomic Digital Wall Clock with Temperature & Forecast in Gray/Silver

12/24 Hour Atomic Time & Date and Daylight Saving Time (on/off option) and 7 USA time zones (ATL to HAW) Future 12 hour Forecast with Indoor/Outdoor Temperature (°F/°C) and Trend Arrows Full Calendar (Day /Month with Weekday) and Crescendo time alarm with 10 minute snooze Outdoor Sensor Signal strength indicator and Low Battery indicators; Wall Hanging or Free Standing Design Outdoor Temp Range: -40°F to 140°F (-40°C to 60°C); Battery operation (Clock requires 2 AA alkaline and TX141v3 Sensor requires 2 AA batteries (batteries, not included)