Jenix Wireless Door Window Open Alarm Home Security System Siren - Set of 4 JX20436
Big LOUD ALARM – door window sensors loud enough to detects entry, prevent kids and babies going out the house, protecting your home office, garage, dorm room, or apartment whether you are in or out. You can definitely hear it from another room to alert you. No worry the young children could mess with it, just have it up high where they can't reach it. Work on sliding doors, windows, drawer, fridge, school VAN gate
EASY INSTALLATION - Wipe the flat surface, peel off sticker, mount the alarm on door and magnetic stripe on door frame. Done!!
POWER SAVE– battery for power supply can be used for more than one year(3 * LR44 batteries included per alarm ) NOTE: 1. Take out the plastic insulation sheet from battery compartment so that battery can be connected
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")
Super loud 90 dB alarm. When someone opens the door or window illegally (the relative position of the primary and secondary parts changes), the alarm can issue a strong alarm, warning the intruder to leave and remind the owner