So you want to get alerted on your smartphone when your door or window is opened. Zmodo Pivot Door / Window Sensors have you covered. They connect to your Zmodo Pivot security camera to let you know when there is any activity in your home. Pivot supports up to 32 sensors. When a door or window is opened, Pivot rotates to capture what happened.
These sensors connect to your camera wirelessly. Their battery life lasts up to 1 year. You can get a pack of 4 for under $36.