20 Pack Window Door Alarm, Sensor for Kids Safety, Home Security System for Pool, Garage, Apartment, Dorm, RV and Office
 
Product Features
  

         
Multifunction - Door window alarm deterring thieves effectively by 110dB loud alarm, also prevent children /pets going out the house without notice.
         
Easy To Install - Wipe the flat surface, peel off sticker, mount the alarm on door and magnetic stripe on door frame.
         
Smart Design - The alarm and magnetic stripe are separated more than 0.39inch(10mm), it keeps going off until you close door(make them connection) or turn it off(switch to the button "OFF")
         
Power Save  Battery for power supply can be used for more than one year
         
Package Include - 20 x Door Window Alarm(without Batteries)