More than a handsome timepiece, our Oxford Outdoor Clock with Thermometer displays the current temperature and humidity in a multidimensional fashion that's easy to read. Large, laser-cut Roman numerals announce the time, while the bi-metal coil thermometer and hygrometer measure the outside temperature and humidity. Quartz timing mechanism Hygrometer displays humidity levels Molded hanger on back of clock provides easy display Rich brushed copper finish over iron alloy frame; clear glass front Clock will not mold or mildew, but finish will fade over time when placed in direct sunlight Clean with mild soap and water; use glass cleaner for the lens Requires one AA battery (not included) Note: Freezing Temperatures can affect battery performance. The use of lithium batteries is recommended.