Here is a smart toddler monitor that allows parents to find out when their young kids leave their room. DECCO hangs on any door knob and acts as a motion sensor. When your toddler leaves his/her room, you get notified on your smartphone. The device is lightweight, water resistant, and made of food grade materials.
DECCO simply lets you know when your toddler is on the move. It can be controlled by up to 3 people at once.