Now, instead of having an alarm that sounds as soon as the door is open, he has a 30 second delay. This helps avoid the “boy who cried wolf” effect also known as the “vista security warning ...

2. A wedge doorstop alarm with an *extremely* loud 120-decibel siren that'll sound should anyone try to force open your door. If you have trouble sleeping in unfamiliar hotel rooms or Airbnbs ...