Product review (4 stars): Temperature Alert/Alarm for freezers & refrigerators
So far the Temperature Alert/Alarm seems to be working.  I like how it constantly shows the interior temperature of our freezer.  The alarm sound isn't to loud, but I think it would alert you if you are in the same room as the temperature alert device is located.  I hope it saves us from loosing hundreds of dollars worth of meat, which happened us and is the reason we purchased this alarm.