Emerson M100 Mechanical Single Stage Thermostat The product is easy to use and highly durable. The product has easy handing. 12V, Standard Mechanical Snap Action Heat Cool Thermostat, Can Be Used Heat Only, Sleek, Modern Design, Attractive Wall plate. Features The product is easy to use and highly durable The product has easy handing 12V, Standard Mechanical Snap Action Heat Cool Thermostat, Can Be Used Heat Only, Sleek, Modern Design, Attractive Wall plate For use on single stage heating and cooling systems Easy to Install Use Ideal for home, RV and Mobile Home uses Mercury Free USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.