is a very versatile vibration alarm. Ideal for home, office or travel.
This alarm requires no installation, simply hang it on any doorknob and it instantly detects any vibration. When the alarm is tripped, it will emit a 98dB alarm for 20-30 seconds, then will reset in 3-5 seconds.
The sensitivity of the alarm is easily adjusted with a screwdriver. The Door Guard can also be used as a flashlight.
The Door Guard is ideal for keeping you and your loved ones safe from harm whether in your home or while you travel.
Not sure about that shady looking hotel, but can’t beat the price? Now you can feel confident and safe. Uses 2 AAA batteries (not included).