La Crosse Technology 513-1211A Jumbo Digital Atomic Temperature Wall Clock, Red Wood WWVB Atomic self set time and date, 4 1/2 inch high time display Automatically Updates for Daylight Saving Time (On/Off Option) Monitors Indoor Temperature (F/C) 4 Time Zone Settings (ET, CT, MT, PT) Range: 14 F to 122 F (-10 C to 50 C)