Make: Online : DIY High heat alarm

DIY High heat alarm

Fm64503Xxfeq6T2C7O.Medium
ElectricJ writes - "This is a simple alarm that I made so that it would go off when the temperature of a deep freezer or other similair appliance got above a certain temperature in degrees. I thought that this would help by giving you a little bit of indication of when it was time to move your food before it went all bad." - Link.

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