This pet door will allow your pet to come and go,but will not open for neighborhood cats,raccoons,skunks,etc. Pets wearing the Ideal E-Sensor Collar are the only animals that can gain access to your home.The e-Cat™ Electronic Cat Door was designed with your pet’s safety and sense of adventure in mind. The E-Sensor™ Collar allows only your pet to activate the electronic cat door for easy and controlled access. Additional collars are available for multiple pet households and can be purchased separately. Features: Durable plastic frame that adapts to doors ranging from 1-1/4" to 1-3/4" in thickness Flap Dimensions: 7" x 9" Cut-out Dimensions: 7 3/8" x 11 3/4" E-Sensor™ Collar allows only your pet to activate the door for easy and controlled access Selective Entry™ Transparent flap features 4-way operation E-Sensor™ Collar included (additional collars available) Interior or exterior use For cats up to 25 lbs Easy installation Requires one 9 volt battery (Not Included)
