Hollarm Refrigerator Delay Alarm Door And Window Alarm Doorbell Anti-theft Magnetic Sensors Security System for Kid Care

Hollarm Refrigerator Delay Alarm Doorbell Door And Window Alarm Anti-theft Magnetic Sensors Security System Smart Kid Care and ProtectionDoor and Window Alarm offers a effective and inexpensive DIY home security solution to help protect you and your belongings with a 108 dB alarm that sounds when a door or window is opened. Help to Deter the intruder, wake or alert you if at home and possibly alert neighbors.Product Feature:1.108 dB Loud Alarm can effectively prevent intruder entering through your door/window.2.4 in 1 Multi-Function --- General Alarm,Constant Alarm, Closing-door Alert (Time Delay), Doorbell, set the appropriate mode according to your need.3.Battery Operated, it need two AAA alkaline batteries ( not included ).4.Low Consumption Design, they can work for over 2 years.5.Low Battery Warning, when it need replace batteries, the LED light will flash once every second.6.Self-Adhesive, easy to install and operate.7.Product Size: 3.41.70.6 inchPackage Including:1* Door/window Alarm1* Magnet Box1* User Manual