Doorknock device can be used in one room apartments, dorm, office, hotels…anywhere. Its size makes it great for travel. Light flashes when someone knocks at the door. Great for privacy, and portable use.
Can be used as a flashlight in power outage.
- Easily hung over any door (hook included)
- Sensitivity Switch
- Low Battery Indicator
- Uses 4 AA batteries (not included)
The Doorknock 300 has been discontinued. Click here to view information on a similar product (Doorknock 125) for the same price.