It is. I wouldn't trust one cheap one, but two should do the job.

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Discussion

Freezers or alarms

Alarms.

I mean I was hoping you would of said freezers because I really want another one

Don't let me stop you.

Oh you won't but my wife will lol

Which one have you used before?

I haven't. I just have family that do. A variety of times of purchase cheap ones rated well on Amazon, always duplicated.

Other ways to to go about it depends on the your home automation or lack thereof.