If you've ever come home to find a raccoon in your bed (yes, it's happened), you'll recognize the value of this product. The Electromagnetic Pet Door gives your dog or cat in-and-out access -- if they have the key. A small magnetic key fitted in your pets collar unlocks the pet door when it's detected by a sensor. Without it, the door locks down. Alternate settings let your pet enter but not exit and vice versa. It's available for $55 and fits doors up to 2.25 inches thick.
Product Page [via Uber-review]
