About this item
Dual Function: It can be used as a door sensor (connect with the alarm kit) and door stopper alarm, its high damping rubber bearing can prevent the door sliding and prevent the bad guys into. A protector around you. Can be used in home and travel.
Loud Alarm: Very loud shrill that would definitely scare someone away with 100dB alarm.
Low consumption: The door stop alarm powered by 3×1.5V AAA battery, GP batteries can be used for a year under normal circumstances. Very practical. (Note: Battery not include)
Easy to Use: NO installation required, Simply place the alarm behind any door (home, hotel, etc). very convenient to take with you when travel or stay indoor alone. A really must have around you.