Give your pet a key to the house... lock unwanted visitors out. Electronic Smart Door recognizes the smart key only. Unlocks as your pet nears; re-locks automatically after pet enters or exits. Energy efficient, weather resistant seal and insulated flap.
Fits standard doors from 1½" to 2" thick.

Large Door: 16-1/8"W x 2¼"D x 23-5/8"H

Additional keys available.