Smart WiFi Wireless Doorbell

Receive real-time alarms remotely when door/window is opened or closed, the sensor will push instant notification to your smart phone immediately. So you don't have to worry about your baby going out of house without notice, will easily know when your aged parents leave or arrive home and even can be clear when someone enters your home, shop, office ,etc. When the door/window is triggered, you will receive an alarm signal from your phone.