Hệ thống chặn cửa chống trộm hình nêm ONE 120 db

#Wedge-shaped #Door #Stopper,120 #db,Anti-theft #Home #Security #System,Locking #System Wedge-shaped Door Stopper,120 db,Anti-theft Home Security System,Locking System Features: 100% brand new and high quality Adjustable high-medium-low sensitivity. Vibration sensor,professional and durable. No installation needed, simple for travelers to carry. Wedge shape design to fit any hinged door. 120 db continuous high intensity siren when activated. Specification: Material:Metal+Plastic Size:as Picture Shows Package Includes: 1 x Home Security Alarm. note: If the gap between the bottom of the door and the ground is less than 0.5 cm/0.19in or more than 3.5 cm/1.38in after opening the door, and the floor is made of very smooth material such as marble, it may cause the product to fail to work normally. Please purchase with caution. Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!