Petsafe SmartDoor Electronic Pet Door

Using radio-frequency technology, the SmartDoor™ Electronic Pet Door reads a unique signal of the SmartKey™ Electronic Key and triggers the flap to unlock so your pets can come
and go as they please. When the SmartDoor™ Electronic Pet Door no longer detects your pet’s SmartKey™ Electronic Key, the flap automatically locks back into place. The SmartDoor™ Electronic Pet Door can detect up to five programmed SmartKey™ Electronic Keys and also operates in two other modes: fully locked mode and unlocked mode.

SmartDoor™ Electronic Pet Door has 3 programmable modes: Automatic, Locked and Unlocked
Easily program up to 5 pets with a touch of a button (one programmed SmartKey™ Electronic Key included)
Energy efficient with an insulated UV sun protection flap
Multi-Point Locking Flap System
Low battery indicator
Made of plastic
Uses 4 x D-cell batteries (not included)