I want an alarm to go off if the freezer door is open for 5 minutes or more.?
Our freezer door keeps getting left open, so I want to install an alarm that will go off if it stays open for 5 minutes or more. I don't just want an open door alarm, than would be annoying when loading/unloading the freezer.
One that would shock the offending child would be an added bonus but not needed.