First off, the 120dB alarm is NO JOKE. I tested it in my apartment and nearly gave my cat a heart attack. The sound is piercing enough to scare off any intruder – or at least make them think twice.

The ABS plastic build feels sturdy but lightweight. I've had it on my front door for 3 months now with no visible wear, though one reviewer mentioned theirs fell and stopped working – so maybe don't drop it?

Installation couldn't be easier. Just hang it on the knob and flip the switch. No tools needed, though I did have to adjust the sensitivity to prevent false alarms from my overenthusiastic dog.

Now here's the wild part – apparently ghost hunters are modding these things! The internal components are simple enough for tech-savvy users to convert into paranormal sensors. Not what I bought it for, but kinda cool to know it has hidden potential.

Biggest downside? The alarm is SO loud that if you accidentally trigger it yourself (like I did while testing), you'll be scrambling to turn it off before the neighbors call the cops. Definitely read the instructions first!