Ring Alarm Contact Sensors, 4XD3S7-0EN0, Pack Of 2 Sensors

Making sure your home and business are safe is always a top priority. Add these contact sensors to your security system to receive real-time alerts when a window or door is unexpectedly opened. Connects easily to a door or window frame. Sends real-time alerts to your compatible smartphone or tablet when the door or window is opened. Tamper-resistant construction provides added security. Requires the Ring Alarm Security Kit (sold separately). Backed by the manufacturers 1-year limited warranty.