GE Personal Security Window and Door Alarm, 5 Pack @ Amazon

Safe and Secure – Ward off would-be intruders with a 120-decibel alarm triggered by a high-quality magnetic sensor, or choose for a chime to sound when windows or doors are opened and closed

User Friendly – Features an easy-to-use OFF/CHIME/ALARM switch on the side of the alarm to let you choose your preference of alert, comes in a set of four to provide extra coverage for your home

Easy Install – Experience wire and hassle-free mounting with the included double-sided tape, everything you need is included in the box

Battery Operated – Powered by 4 LR44 button batteries (included) and features a battery test button and low battery indicator LED

Peace of Mind – These home security products are designed and tested to fortify your home with a reliable layer of protection, empowering you to live your life free of worry