Keep track of time with the utmost precision while barbecuing on the patio, working in the garden, or splashing in the pool with this 18-inch outdoor atomic wall clock from La Crosse Technology. Radio-controlled to automatically set to the National atomic clock in Colorado, and adjusts daily for continued accuracy. Additionally, the clock automatically corrects for daylight savings time. Equipped with a two small analog gauges, it also displays the ambient temperature and humidity to let you know of dry or wet conditions. The hygrometer gauge measures from 1 to 99 percent relative humidity, while the temperature gauge gives readings for temperatures from -10 to +130 degrees Fahrenheit, or -30 to +60 degrees Celsius. Surrounded by a sleek pewter-painted plastic frame, the clock face features black 1-1/6-inch-high numbers for easy visibility. Elegant, black metal hands tick off the hours and minutes. On the backside of the clock, the user selects the appropriate US time zone; the clock accommodates Eastern, Central, Mountain, and Pacific times. A manual reset button is provided. To ensure accurate readings, hang the clock in a dry area out of direct sunlight. This clock requires the separate purchase of one AA battery for operation with an optional compartment (2 additional) to extend life of power. A one-year limited covers this item. The clock measures 18 inches wide by 2-1/2 inches deep by 18 inches high and weighs near 5 pounds upon shipping.