Door Window Entry Alarm: Wireless Door and Window Opening Alarm Detector

This wireless door or window entry alarm can be easily installed and no wiring is required.  Very easy to set up and use.  The wireless window, door or garage alarm sends a powerful alarm to scare away the intruder.  Protection of your store, office, home or any entrance inside a house.  The door window entry alarm is quite convenient and easy to use, attach the alarm unit to the window or door frame and the magnet to the door or window switch. ON OFF".  Practical and clever, this alarm works by magnetism and has two magnetic elements which emit a sound signal with a power of 100 dB when they are separated.  No one will be able to enter or open a protected window without the audible alarm sounding.  Easy to install, each piece has an adhesive label to attach to the door or window.  Simple as pie, right?  Wireless Opening Alarm Detector for Door, Window, Bay Window, Velux Groupon Lot for Loto Features : Dimensions approx. :4x6x2cm.  Battery operated (3 x AG13/LR44, included).  Super-powerful 100dB alarm.  Without cable or electricity, here is a practical and effective solution to protect yourself from possible burglaries or unauthorized visitors.