Meet the Samsung SmartThings Multipurpose Sensor: a handy tool that can detect vibration, orientation, angle, temperature, and more. In fact, it lets you know when things open or close. You can use it to monitor your home and get an alert when door, window, and other things open unexpectedly. The device also reminds you when you forget to close your door.
This ZigBee sensor helps you keep a close eye on your home. It works with the SmartThings Hub. Will cost under $40.