Security Sensors Nice

100% New and high quality. Type to window or door. Ideal entry warning for homes, apartments, mobile homes, offices, hotel rooms,garages and more. Super loud 95 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. This magnetic sensor can detect the status of your door or window. It can prevent your children from sneaking out and ensure the safety of children, homes, garages, mailboxes and businesses. You can easily install and operate. Press the on/off switch to turn on/off the power, then insert 2pcs AAA batteries (No battery in …