Nikrim Portable Wedge Door Stop Alarm with 120 dBTraveling DIY Home Apartment Security Door Stopper Doorstop Safety Tools

DOOR STOPPER SECURITY ALARM the door stopper alarm in on statuswhen door pressure is appliedthe door alarm will be triggered while make extremely loud 120db alarmhelps wakealert homeowner or renter helps deter intruder and possibly notifies neighborssecurity protection NONSKID DOOR STOPPER the door stopper alarm in off statusit can be used as common damping rubber base door wedgehold door in open positionno any loud alarm sound EASY INSTALLATION no wiring needed batteryoperated requires 1x9V batterynot included place it under the doorthe gap bewteen the bottom of the door and the floor should be 10mm038 in to 35mm135 init can not slide on tile when door openssmooth floor can try to use Htype sensitivityvibrationsensing alarm