La Crosse Technology WT-3181PLX1 18 inch Indoor/Outdoor Atomic Wall Clock

La Crosse Technology WT-3181PLX1 18 inch Indoor/Outdoor Atomic Wall Clock Features Plastic Case Analog Temperature (°F and °C) Analog Hygrometer (%RH) Atomic time with manual setting Automatically sets to exact time Accurate to the second Automatically updates for daylight saving time (on/off option) 4 time zone settings Optional extended battery life.  Insert two batteries in the compartment below the movement to extend battery life. Specifications: Atomic Movement Temperature range: -10°F to +130°F and -30°C to +60°C Humidity range: 1% to 99% (%RH) Power Requirements: One "AA“ Alkaline battery(not included) Optional:  2 "AA" Alkaline Battery (not included) for extended  Dimensions: 18" Diameter x 2.75" Deep Product Manual FAQ