High Tech Power Pet Smartphone Controlled WiFi Patio Pet Door

App-controlled automatic pet door for sliding glass doors works with WiFi to control your pet door from your phone  Features dual-pane, Low-E glass for excellent insulation value  Sturdy aluminum frame withstands harsh weather  Automatic door senses ultrasonic pet collar key to unlock  Option of electrical or battery operation  The High Tech Power Pet E-Glass Smartphone Controlled Patio Door is the new and improved version of the High Tech Power Pet Patio Pet Door. Enjoy the same great features of the Power Pet Door for sliders with the addition of Low-E and dual-pane glass. WiFi is required to access the pet door through the smartphone app.  The app gives you remote control over the door's automatic features. The electronic pet door raises open when it senses the ultrasonic collar key your pet wears, keeping your home secure and free of unwanted critters. Set up to 20 custom timers to control when your pet can come and go, and view app history to see the number of times the sensor