Entry SensorProtect Your Doors and Windows from Break-Ins with eufy Security Entry Sensor. Once a window or door is ajar by 1.5 inch. an alert will be sent to your smartphone. and a powerful siren will go off on the HomeBase (can be disabled). Requires eufy Security HomeBase.eufy Security: Less Trouble. More Secure. Ever Expandable.Surveil your home from front to back for total peace of mindCreated by the same team as Anker: renowned for exceptional quality and innovation
