1、Wireless Alarm: This window alarm sensor supports remote alarm via mobile phone, which ensures high safety. 2、Adjustable Sensitivity: This glass break detector features adjustable sensitivity, from gently touch to push or beat, for preventing false alarms. 3、Wide Application: This glass break sensor alarm is perfect for your home, apartment, office, store, garage, dorm room, or even RV. 4、Battery Powered: This wireless glass break detector is powered by button battery, long battery life, you don’t need to replace battery often. 5、Easy Installation: This vibration alarm sensor with ultra slim design can be easily installed with double sided tape. Item Type: Window Alarm Sensor Material: ABS Battery Type: Button Battery 1 x Window Alarm Sensor