• Warning horn sounds if your door is left open longer than the selected time
• Select an adjustable time delay from 15 seconds to 15 minutes
• Home use: keep an eye on children coming and going including aging parents
• Business Use: Cooler door, freezer doors, storage rooms and warehouse entrances can be monitored
• Audible low battery alert
• Time counts begins once the door has been opened
• Unit will automatically reset if the door is closed
• Mounts easily with double-sided tape (included)
 
This unit has many uses in a home or business environment.