Rosewill RSHS-11001 Home Security Indoor/Window Alarm, 4 Pack (Silver)

The Rosewill RSHS-11001 travel alarm is a great method to protect you and your property from theft when you are away from home or in sleep. It utilizes magnetic-triggered mechanism that features 10~13mm magnet distance - when magnetic contact is broken, it would sound 100 dB alarm to scare away the intruder, delivering easy to use window/door protection you can rely on. Includes easy access On/Off switch on the side.