Designed for use with genuine High Tech Pet MS-5 ultrasonic collars. Power Pet door performance warranty only applies when operated with authentic MS-5 transmitters. SMART AUTOMATIC PATIO PET DOOR BY HIGH TECH PET – ASSEMBLED IN THE USA Give your pet the freedom they deserve with the WiFi Power Pet Patio Door, designed and assembled in the USA by the inventors of the world’s first automatic pet door. CUSTOM DUAL-RANGE CONTROL: Set separate activation distances for entry and exit using precision ultrasonic sensors. Your pet can safely trigger the door only when approaching within your chosen range — perfect for multi-pet households or homes near sidewalks and patios. FULL CONTROL OF IN-AND-OUT ACCESS, AND ONLY OPENS FOR YOUR PET: Choose from In Only, Out Only, In & Out, or Locked modes, giving you complete flexibility for training, security, and scheduling. Prevents false triggers — the door opens only when your pet approaches directly, not when wandering nearby or resting beside it. AUTOMATIC STEEL DEAD BOLT LOCK & ANTI-PINCH SAFETY: For maximum safety and peace of mind, the Power Pet Door features a high-security steel dead bolt that automatically locks when the door closes, protecting against intruders and pests. FAST, QUIET & WEATHER-PROOF:: Developed by expert electromechanical engineers, the Power Pet Door opens instantly and operates whisper-quietly, while the hermetically sealed panel keeps out wind, rain, and drafts — even in extreme weather. PREMIUM PATIO DOOR DESIGN: Crafted with a heavy-duty aluminum frame, dual-pane Low-E glass, a universal lock, and an extra vacation foot lock for maximum durability, insulation, and security. ONLY OPENS FOR YOUR DOG'S SMART COLLAR: Comes with a small, lightweight, water-resistant MS-5 collar that’s comfortable for pets of all sizes and built to withstand daily outdoor use. For best results, ONLY USE WITH GENUINE HIGH TECH PET COLLARS AND BATTERIES. POWER OPTIONS FOR ANY SETUP: Run your Power Pet Door using the included AC adapter, or add an optional rechargeable battery for backup power during power outages or off-grid installation. EASY DIY INSTALLATION + US-BASED CUSTOMER SERVICE & WARRANTY Engineered for straightforward, DIY installation with clear step-by-step instructions. Fits seamlessly into patio panel mounts. Every Power Pet Door is backed by our lifetime manufacturer’s warranty. Our friendly, expert, U.S.-based support team is standing by to help you every step of the way. The new, improved Low-E energy efficient patio door insert includes a fully Automatic Power Pet Door, mounted in an energy efficient dual pane, Low-E glass panel. This ultra-high quality product combines beauty, sophistication and energy efficiency with the highest technology available today. Fully Automated and Activated by Your Pet's Digitally Coded Ultrasonic Collar: These ingenious doors keep out stray animals while allowing your pets the freedom to come and go without requiring you to act as your pet’s personal doorman. The sleek and elegant design is also rugged and completely wind and weather resistant. No drafts will penetrate your Power Pet door even in hurricane force winds providing a most energy efficient pet door. The Extra-Rugged Design: features dual pane “Low E” tempered glass and an extra heavy duty aluminum frame, coated with an industrial quality "powder coat" finish. Note that in addition to the dual pane, “Low E” glass, the aluminum frame is nearly twice as thick and about 8 times stronger than typical patio pet door panels. The self-contained unit easily fits into your sliding glass-patio door track and adjusts to your door’s individual height with a special spring loaded top section for quick, perfect installation. Your patio door slides shut against our insert and may be locked with our new Universal Quick Lock, designed to fit nearly any sliding glass door. Full Weather stripping is included. The entire installation process usually takes less than one hour. NOTE: THIS DOOR INSTALLS ALONGSIDE YOUR EXISTING SLIDING GLASS DOOR, USING UP PART OF THE WALK THROUGH SPACE.. PLEASE MAKE SURE YOU HAVE AMPLE OPEN DOOR SPACE TO LEAVE AN OPENING LARGE ENOUGH TO WALK THROUGH.. NOTE: Returns on the sliding glass doors are subject to a restocking fee. NOTE: These doors are AC powered via the included AC adapter. Optional Battery operation requires the purchase of our CRG-12V-1B (charger plus one battery) or CRG-12V-2B (charger plus 2 batteries).