Here is another smart gadget that helps you keep an eye on your valuable things. The Duo sensor is a cellular based security solution that works in over 200 countries. Simply place it where you want to monitor and you will get an alert when the sensor is triggered by motion and light.
Duo supports an unlimited number of users. It sends alerts within 15 seconds of being activated. Duo is smart enough to fit in the palm of your hand and runs 1 year on battery.[where to get it]