Friend is selling automatic pet door. Never been used. $200 (see details and link below) Contact colleen_coll@hotmail.com http://www.petco.com/product/117251/High-Tech-Pet-Power-Pet-PX-1-Pet-Door.aspx?cm_mmc=CSEMGoogleAdExtProd-_-Dog-_-High%20Tech%20Pet-_-1506935&mr:trackingCode=F30E9570-C512-E111-B18D-001B21A69EB0&mr:referralID=NA&mr:adType=pla&mr:ad=28820626795&mr:keyword=&mr:match=&mr:filter=51515394835 High Tech Pet Power Pet PX-1 Pet Door The ultimate in security and energy efficiency, the Power Pet PX door is the world's only pet operated door that opens completely under its own power when activated by your pet's ultrasonic collar. This amazing pet door will make your life easier by relieving you of "doggie doorman duty". Other pet doors may claim to be electronic, but genuine Power Pet doors are fully automatic and motor driven with a bulletproof translucent door panel that quickly and quietly powers upward into the stylish housing. This door is air-tight even in hurricane force winds providing the best insulation and energy efficiency of any pet door made. Animal and human intruders are prevented from entering by an automatic dead-bolt locking feature that adds a higher level of security than any other pet door. Only your pet, wearing the coded ultrasonic collar, is allowed to enter.