Electronic / Portion Control Feeders are perfect for pet owners who are trying to limit the amount of food that a pet is eating s well s situations where feeding is done at timed intervals. The models we carry will vary in how much food and how often they can dispense a meal. The automatic feeder systems work great for owners who may work late and need to feed a cat or dog t a certain time. Other compartment models are perfect for diabetic pets that need to eat a precise amount of food. The units feature an auto opening lid that allows the pet to eat a set portion of food.