Alarm for Freezer

[tripper]

I am looking for an alarm for my (Whynter 12v) freezer that will alert me when either the temp gets too hot or it loses power. I ask because I just lost a freezer full of meat because it got unplugged

 

[frater secessus]

Maybe something like this but with louder alarm and a wired sensor you could put in fridge:
https://www.amazon.com/DIGITEN-Fahrenheit-Thermometer-76-257F-Temperature/dp/B0114AWZMA

That one was the first I saw.

 

[DLTooley]

On my project list is cutting the ciggy cord and wiring direct.