The RD Pro Digital Feeder Kit has the same housing as the R Pro Feeder Kit but it's upgraded with a digital clock timer that lets you program one to 16 feeding times per day with variable daily time combinations. Three feed rates. Clock has built-in rechargeable battery. Built-in varmint guard. Simple installation fits most any feed container. Runs on one 6-volt spring-top battery (not included). Includes heavy-duty, no-blow metal spinner plate.