It’d be twice as costly with readers on both sides, and the bulk on the inside of my unit is mostly the battery, so you’d either have a much bulkier interior unit or a smaller battery, and if you’re close enough for face/NFC/whatever reader that wouldn’t false positive, you’re likely close enough to just unlock manually.
I was thinking maybe a downward projecting motion sensor so it could see you approach would be small and read an small enough area, but the first time a pet goes to the door, you’re unlocked unintentionally again! 😸







Ooo… Another Iceraven user!
Once Kiwi stopped getting updates, that was the next best thing I found. Fennec was a close second.