2 Pack Door Stop Alarm with 120dB Siren for Home Apartment House Safety,Portable Door Stoppers Alarm for Travelling Hotel Room Security Floor Wedge Door Stopper Alarm
Safety & Reliable--CE certification,Made of high quality stainless steel and ABS plastic with anti-slip damping base,Stop the door open by force and the bad guy break in.
How it Works--Keep the door stopper alarm in "on" status,when door pressure is applied,the door alarm will make extremely loud 120db alarm to scare someone away who is trying to get in by force.
Wide Application--It can be used as door stop alarm and door stopper,fit for home use,travel,hotel,apartment.Fit for someone live alone or in traveling,especially single lady/man/couples.
Easy to Use--Powered by one 9v battery(not inbcluded),no instruction needed,simply install the battery and turn it on, then place the alarm under the door.
Easy to Carry--Small size:5.5" x 1.77" x 1.5",lightweight:4.3 ounces.easy to carry to outdoors,offices,hotel,dorm roomsect.
Note--The gap bewteen the bottom of the door and the floor should be 0.2 in inches to 1.38 inches,super smooth floor can try to use H-type sensitivity,vibration-sensing alarm.