Anti-theft Alarm for Doors and Windows: Door Sensor Alarm can add a second layer of protection lock to the original door lock, Anti-theft Alarm for Doors and Windows and also has more powerful anti-theft performance. A door and window alarm with wide applications, break-in warning, ideal for home, office, hotel, apartments, garages, dorm room, or even RV SUPER LOUD REMINDER 120 DB: When touched, door and window alarm emits a loud sound to remind you that there is an intruder, Door handle alarm system prevents thieves from sneaking into your room and causing damage to your property or ginseng security WIRELESS ANTI-THEFT ALARMS: Wireless Door and Window Alarm can be used for travel and hotel accommodation. You can hang this alarm on doors and windows to prevent illegal intrusion. Door and Window Alarm Sensor Widely used in home, office, factory EASY TO USE wireless home alarm system: Door handle alarm for doors and windows does not require any special wiring. Door opening alarm