How Electronic Pet Doors Solve Pet Owner's Problems

Many times, we expect our pets to conform to our schedules and keep them waiting until we are ready to let them out, or let them back inside the house. In the past, this dilemma was solved by cutting a flap into the main door, to let the pet or pets in and out when they wanted. However, this solution was far from ideal, as it let in other animals, and in bad weather, let in wind and rain from outside, not to mention things from the street.

Source: http://EzineArticles.com/6916362

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