Linkstyle Smart Security Starter KitThis Smart Security Starter Kit includes 2 Door & Window Entry Sensors to cover entryways, 1 PIR Motion Sensor to monitor a critical area, and 1 Smart Security Gateway to connect them all together. Arm your smart security system while you are away using the Gateway, and you will be notified if any uninvited guest enters the range of the motion sensor, or if your door or window opens unexpectedly. Additionally, the sensors will also trigger a loud