The base station is the communication center of your sensors. The information collected from the sensors is registered here and passed on to you via internet.
The door sensor is attached to the front door. It detects whether the door is opened normally or if someone tries to open it without a key. In that case it produces a loud
noise and informs you on your smartphone.
The motion sensor detects movements in its near environment and informs you directly in situations when you expected your home to be empty. In the future, the motion sensor will do even more, helping you save energy or learn more about your home.