Power Pet PX-2 Automatic Door (Door Mount)

In this power pet px-2 automatic door (door mount) review, the verdict comes first: the Power Pet PX-2 by High Tech Pet is the best overall electronic dog door in our 2026 guide because it pairs 1,055 Amazon ratings at 4.1 stars with a 100 pound weight capacity and a steel dead bolt lock. The unit measures 18 x 6 x 47 inches, weighs 8 pounds, and fits a mounting surface 2 inches thick, which covers most standard exterior doors and many wall builds. It is built for large dogs, and the $474.99 price already includes one MS-5 collar, the A/C adapter, mounting hardware, and screw covers, so there is no second purchase needed to get started.

Day to day, the Power Pet PX-2 stays sealed and locked until your dog walks straight toward the panel, and then it rises quietly. Directional sensing is the feature that matters most here, since the door ignores a dog that is resting nearby or wandering past, which cuts the false triggers that annoy owners of simpler automatic doors. On top of that, a steel dead bolt snaps shut the moment the door closes, and the auto-retract safety system reopens it if something blocks the path, so a tail or a paw is not trapped. Meanwhile, the four modes (In Only, Out Only, In & Out, and Locked) let you train a puppy on one direction at a time and seal the door completely at night. In practice, the air tight closure also keeps drafts out better than a standard flap.

At $474.99, the Power Pet PX-2 is not the cheapest door in our guide, and it will not suit every home. However, the price includes the MS-5 collar and the A/C adapter, and the full one year manufacturer warranty plus US based customer service offset some of that cost. The main limitation is collar dependency: the door responds only to genuine High Tech Pet MS-5 transmitters, so a two dog household needs a second collar, and performance coverage applies only with authentic collars. By contrast, a plain flap costs far less but leaves the opening unlocked for strays and raccoons. If you want the most reviewed automatic dog door for large dogs, with a dead bolt and directional sensing, the PX-2 is the one to buy. If you want no collars or the lowest possible price, skip it.