A decibel meter is useful for measuring noise levels.

I'm wondering if anyone in Davis has one that I might be able to borrow for a short time. I need to take some noise readings on something. —IDoNotExist

But you don't exists, so how can you borrow one? Perhaps RadioshackStevenDaubert

Buying one is way too expensive for what I need it for. This is really just a one time use. Borrowing one without existing is all part of the challenge. :-) —IDoNotExist

What do you need this for? Which weightings, if any, do you need? How accurate do you need it to be? I don't have access to a lab grade meter, but I'm confident I could throw something together using one of my reference microphones. —WilliamLewis

I bet it's an attempt to see if something makes more than 39 db 40 feet away or whatever it is that quantifies an noise violation —StevenDaubert

Nope! —IDoNotExist

Then you just maybe supremely bored <3 —StevenDaubert

Nope! I have a really good use for it... —IDoNotExist