This strong metal SECURITY DOOR JAMMER is not an alarm, in fact it is not electronic at all, and it makes no noise when in use. It works to keep the bad guys on the other side of your door. An ALARM only sound AFTER SOMEONE ENTERS YOUR HOME. Our SECURITY DOOR JAMMER installs under the inside door knob and then presses on the floor to wedge the door so that it is much harder, if not impossible, for it to be opened from the outside. This will gives your family an added measure of security and, most importantly, peace of mind. Our SECURITY DOOR JAMMER is made from a heavy gauge metal tube with plastic floor and knob grips. It is aprox 33 5/8" long, and adjusts up to 38 7/8" long. AT OUR LOW PRICE, WE SUGGEST YOU GET ONE FOR EVERY OUTSIDE DOOR, AND ONE FOR EACH BEDROOM DOOR.
• A strong metal tube with custom hard plastic floor and door knob grips.
• it is 33 5/8" long and adjusts up to 38 7/8" long.
• It wedges under the door knob and then presses on the floor so that it can't be removed from the outside of the door.
• It is a Ideal low cost method for adding security your door ways.
• It greatly Improves security on hinged doors.
. Note, it can also be used on sliding glass doors by laying it in the track.
• It has been tested to be able to withstand up to 350 lbs of force.
• Made from rugged 20-gauge steel construction.
• Weighs 1 lb.
• The SECURITY JAMMER provides your home with added safety by reinforcing doors from outside intruders.