Ordinary alarms don’t notify until someone has already entered. The special 2 in 1 alarm sound as soon as someone comes inches from touching door knob. They won’t know who heard it, they will only know they have been caught. Perfect for home or travel. No installation required, simply put alarm noose around door knob and PRESTO! Your home is armed letting you know before someone even starts picking your lock. This can be used for hearing impaired as well, the light flashes when alarm goes off! Alarm goes inside your house or inside your room so the thief doesn’t know it is there on the outside of the door. Do you have a nosy roommate? 5 second install
Door Knob Alarm
$23.95
