High Tech Power Pet Automatic Patio Pet Door

Automatic pet door for sliding glass doors Low-E, dual-pane tempered glass keeps your home insulated Flap raises automatically so pets don't have to push through Includes one water-resistant, ultrasonic MS-4 collar key Choice of electrical or battery operation This patio panel insert is made with Low-E, dual-pane glass, and durable aluminum framing to keep your home insulated year-round. The electronic sliding glass dog door lifts when your pet is in front of it, eliminating the need for them to push through the flap and keeping your home secure from intruders and unwanted critters. The combination of an insulating panel and inaudible, high-frequency sound sensing technology ensures that the needs of both pet and owner are met.  Features:  Low-E, dual-pane tempered glass in panel keeps your home insulated. Spring-loaded panel for tool-free installtion in your sliding door track. Aluminum frame is nearly twice as thick and about 8 times stronger than typical patio p