The Springfield 91579 clock/ thermometer/ hygrometer combo is an accurate and upscale option for tracking the weather conditions in your garden or on your patio. With a 14" dial and durable metal construction, this item is both highly visible and highly resilient. Employs a fade and weather resistant coating, ensuring that its colors will remain as attractive and true as the day they were applied. Springfield products feature precision temperature coils to ensure supreme accuracy. Requires 1 AA battery (not included).