Drag the red bars to set the volume/motion limit. When the limit is reached the alarm will go off. When they're at the very top the alarm won't go off. Or you can simply press the space button or click the emergency button to set off the alarm. The arm mouse button will start a count down, then after that if the mouse moves the alarm will go off. That means you could close your door with a mouse behind it. When the door is opened the mouse will move causing the alarm to go off. Or put it on some important papers.
