I have a child with autism. He wonders out of his room at all times of the night. How could we install this where it would only monitor his door?

Hello Dre, Great question and Thank you for your interest in our Personal Security Motion-Sensing Alarm. The ball and socket mount will provide you the flexibility to aim the motion sensor in a particular direction, in this case the front of your child’s door. In addition, this device also gives you the option to operate in alarm mode or chime mode. If you have any further questions, we encourage you to respond or contact our Customer Support through phone or email. Thank you, ByJasco Tech Support (Manufacturer)