SmartDoor Small - Our innovative Electronic SmartDoor™ gives your pet a key to the house so he can come and go as he pleases. - Using radio-frequency technology, the SmartDoor™ reads the unique signal of a SmartKey™ worn on your pet's collar and triggers the battery power-driven flap to unlock. When the SmartDoor™ no longer senses your pet's SmartKey™, the flap automatically locks back into place.

The SmartDoor™ can detect up to five programmed SmartKeys™ and also operates in two other modes: fully locked mode and unlocked mode. Locked mode does not allow entry or exit for any pet and unlocked mode allows entry and exit for all pets.

Features:

New and improved design

3 programmable modes: Automatic, Locked and Unlocked

Now includes one programmed SmartKey™ and battery

Easily program up to 5 SmartKeys™ with a touch of a button

Energy efficient, insulated flap with UV sun protection

Uses 4 D-cell batteries, not included

Low battery indicator

Fits door thickness 1 1/2"" to 2"" (3.8 cm to 5 cm)

Outer Frame Dimensions - 9"" W x 15 5/8"" H (22.9 cm x 40 cm)

Flap Opening Dimensions - 5 1/2"" W at center x 7 7/8"" H (14 cm x 20 cm)

Great for pets up to 15lbs (6.8 kg)" Case Pack 1