BROTEX makes pet doors that solve a specific problem: keeping unwanted animals out while letting your cat move freely. This RFID model uses three sensor keys—two collar tags and a remote—to read your cat’s unique ID before unlocking. The 4-way locking system lets you switch between full access, exit-only, entry-only, and locked. That matters when you want to keep your cat inside at night or prevent neighborhood strays from wandering in.

The ABS plastic body feels sturdy enough for exterior use, though it’s not reinforced steel. The included lithium ion battery powers the RFID reader reliably for months. In practice, the door unlocks within a second of your cat approaching. The collar tags are lightweight and don’t interfere with normal movement. The remote works from about 30 feet away, useful for manual override if the battery dies.

One honest limitation: the sensor range is fixed, so if two cats approach at once, the door may open for the first one detected. That’s a minor quibble for a system that otherwise works quietly and automatically. For owners who want selective access without a bulky smart hub, this is a straightforward, effective solution.