Home security

For some reason, I freak out a bit about whether our house is secure. While I don't go around re-checking if doors are locked, sometimes I do lay in bed wondering if my husband really locked the back door. Ideally, I'd like to get one of the smart home systems for security but, since we have so many animals, I'm not sure if they would set off the detectors. After all, there's the cat that roams at night, the two chinchillas that run in their cage at night, and who knows what the bird does when we're not home. The dogs are crated when we're out so they aren't a big worry. Maybe we could find one that doesn't detect animal movement. I don't know if that actually exists.