I just ordered a carbon monoxide detector from Amazon, supposedly shipped from the manufacturer. I’d be lying if I said I didn’t immediately think of Amazon’s many counterfeit scandals before ultimately ordering it as I do most things, out of habit. Still, this is a thing for which silent failure is catastrophic, so maybe I’ll send it back tomorrow.
Just do it. You'll sleep better at night, and you'll have a higher chance of waking up.
I no longer buy any products from Amazon anymore that's made to go in, on, or protect my body.