Garden Wall Clock with Thermometer & Hygrometer Traditional indoor or outdoor clock with barometer, thermometer and Roman numerals. Finished off in an attractive style these clocks are hardy and can deal with whatever the weather throws at them. Features: Roman numbers and skip hand movement. Weather resistant with Centigrade & Fahrenheit reading. Includes hygrometer and thermometer. Plastic construction. Diameter: 15 inches. For both indoor and outdoor use. Powered by 1x AA battery (not included).