Accidentally leaving a door open for a long time will ruin the contents of a freezer if nobody knows about it. This alarm will notify folks when the door has been left open for more than 10 minutes, and it will start beeping after 5 minutes. A motion sensor will restart the door timers when activated, as someone could spend >5 minutes loading the freezer. This alarm is designed to fit a double door commercial freezer.
There are 3 phases of the alarm
- Door(s) open <5 minutes - no action.
- Door(s) open >5 minutes with no motion - pre-alarm beeping.
- Door(s) open >10 minutes with no motion - beep more and email a notification.
The purpose of the pre-alarm beeping is to draw attention to the freezer so someone can close it before the alarm goes off.