PetSafe Electronic SmartDoor Pet Door

Wouldn't it be great if you didn't have to get up every time your dog wanted to go outside or come back in? If you have a fenced yard, that can happen when you get him a PetSafe Electronic SmartDoor Pet Door. A SmartKey on his collar will be his own special key to the house - and the yard. SmartDoor uses radio-frequency technology to read the unique signal from the SmartKey. The SmartKey triggers the battery-powered door flap to unlock when the dog approaches, and locks again when he goes out of range. This ensures that unwanted visitors like raccoons, squirrels and skunks don't wander in.

Features:

• 3 Programmable modes: Automatic, Locked, Unlocked
• 1 Programmed SmartKey and battery
• Energy-efficient insulated flap with UV sun protection
• Low battery indicator
• Uses 4 D-cell batteries (not included)

Specifications:

Small:

• Fits door thickness: 3.8cm to 5cm (1 1/2" to 2")
• Door dimensions: 22.9cm x 40cm (9" x 15 5/8")
• Flap opening dimensions at widest point: 14cm x 20cm (5 1/2" x 7 7/8")
• Great for pets up to 15lb (6.8 kg)

Large:

• Fits door thickness: 3.8cm to 5cm (1 1/2" to 2")
• Door dimensions: 41cm x 60cm (16 1/8" x 23 5/8")
• Flap opening dimensions at widest point: 27.94cm x 40.64cm (11" x 16")
• Great for pets up to 100lb (45 kg)