Access Control For Pets - Recommendations Wanted...

I would use a turnstile with some feline paw-mapping biometrics. That will eliminate the kitty-backing

If there IS intelligent life on other planets that visit Earth......I wonder what they think of us?

Being a little more serious, how about using a 'key fob' prox card on the collar. I don't think that you'd be able to get close enough to activate the reader though..

.....though a relatively weak reporting module...

Keep looking, because auditing when Fluffy is coming and going is vital. ;)

We've become pet-obsessed in this country.

The problem will be battery life. NFC would be better, but you'll need a range of 12" minimum to hit the reader

So I bought a Wiegand MagLock for Kitty Flap with Dermal Embedded Enrollment, about $120.

I must say Animal A/C may be the most exciting thing to hit the industry in decades.

Specifically, I found that Feline Access is not merely a subset of the Hominine Access were all used to, but has its own set of challenges.

For instance, consider the so called 'tailgating' problem with access control for people. 'So called' but with cats though, it is literally tailgating. The length of a cat tail and the overlap it can have with the next varmit's head coming thru the door, make 'hard' anti-passback strategies cruel and unworkable.

Why they don't call it tailgating in my manual is beyond me though, they say instead

This setting will not prevent a cat that is not allowed out following 'head to tail' another cat that is allowed out.

Works well, but I am concerned about it being hacked considering the number of Wiegand expoloits currently 'in the wild'.