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.
Small children can pass through door. Read entire statement.
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