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 PET DOOR BY HIGH TECH PET Give your pet safe, independed access with the Power Pet Door, proudly engineered and assembled in the USA by the inventors of the world’s first automatic pet door. FULL CONTROL OF IN-AND-OUT ACCESS, AND ONLY OPENS FOR YOUR PET: Choose from In Only, Out Only, In & Out, or Locked modes on the control panel for flexibile for training, security, and scheduling. DIRECTIONAL SENSING TECHNOLOGY: 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: A high-security steel dead bolt locks instantly after closing to block intruders or strays, while the auto-retract safety system reopens if an obstruction is detected. FAST, QUIET & WEATHER-PROOF Expertly engineered for whisper-quiet, smooth motion. The hermetically sealed panel keeps out wind, rain, and drafts for year-round efficiency. SMART COLLAR TECHNOLOGY: Includes a lightweight, water-resistant MS-5 collar that’s comfortable for pets of any size and built for long-lasting indoor and outdoor use. For best results, ONLY USE WITH GENUINE HIGH TECH PET COLLARS AND BATTERIES. POWER OPTIONS FOR ANY SETUP: Operate with the included AC adapter or add an optional rechargeable battery for backup power during outages. EASY DIY INSTALLATION: Designed for straightforward setup with clear, step-by-step instructions. Fits seamlessly into door or wall mounts. US-BASED CUSTOMER SERVICE & WARRANTY: Backed by our lifetime manufacturer’s warranty. Our friendly, expert, U.S.-based support team is standing by to help every step of the way. Power Pet doors are motor driven and activated by a tiny ultrasonic collar. Unlike other electronic pet doors that merely unlock a hinged panel, requiring your pet to push it open, Patented Power Pet doors open completely under their own power. When your pet approaches, the air-tight translucent super-strength resin door panel quickly and quietly powers upward, disappearing into the stylish housing. Mounted in hermetically sealed grooves for air-tight closure, this mounting arrangement makes it impossible for an intruder to kick it out. An automatic dead-bolt locking feature adds a high level of security. The result is a secure pet door that allows your pets to come and go as they please while their animal friends are politely asked to stay out. The digitally coded signal emitted from your pet's ultrasonic transmitter collar allows the Power Pet to open only when your pet is on a direct approach. 4-way access control lets you select from In Only, Out Only, Full Access or Closed and Locked. Dual range controls let you set independent inside and outside activation distances. Comes in 3 Models Door Install Model Wall Install Model (Each comes in 2 sizes (Medium – up to 30 lbs. and Large – up to 100 lbs. Sliding Glass Model (Comes in 2 sizes Medium or Large) Each size comes in 3 height ranges Regular, X-Tall and Shorty. Our Sliding Glass Model turns a sliding glass door into a fully automatic pet door. Power Pet door is pre-installed in an aluminum framed glass insert to fit into a sliding glass patio door. The only electric pet door slim enough for a practical patio door installation. NOTE: Power Pet Door installs alongside your existing sliding glass door. Please ensure that your sliding glass door opening leaves enough room for walking in and out after deducting 12" (med) or 18" (lg) for installation.