Advantages of an Electronic Dog Door
A electronic dog door can be powered by batteries or by plugging it to a regular home electrical outlet. This door uses state of the art technology in order to give your pet a greater degree of freedom. The door has detectors that can sense the presence of a special collar that your pet has to wear, and will open only when this collar approaches. With this system, no other animal will be able to get into your house. Of course, the technology of these automatic doors makes them more expensive, but they are worth it.