Enerwave ZWN-BDS Z-Wave Wireless Magnetic Door and Window Sensor, Remote Monitoring of Doors and Windows with Text and Email Notifications - No Drilling Required, White Remotely Monitor Doors & Windows in Real-Time on your Smart Phone, Tablet, PC or Mac Set the Sensor to Alert You via Text Message, App Notification or Email when the Sensor is Triggered Door Open/Close Can be Set to Wirelessly Trigger Controls on Lighting & other Z-Wave Connected Loads This Unit Supports Z-Wave Associations and can Send Commands up to 5 Associated Z-Wave Devices Battery-Powered, 1 Year Battery Life, NO WIRING REQUIRED, Easy Installation and Self-Adhesive