[Homesecurity request] Looking for a battery powered alarm that goes off if a door is opened and a specific button/code is not pressed in a timely manner

Hello,

I have a shipping container that is on my property but not right next to the house.

Can someone point me in the right direction towards a non-subscription battery powered loud alarm that would go off if someone opens the container and doesn’t hit a button/code.

There is no power hook up currently so battery powered

It can be a off the shelf or DIY option i could probably figure out

no subscription services

I was wondering what you guys recommend?

Thanks

submitted by /u/fro99er
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May 24, 2023
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