Here is a portable security sensor that lets you know when your things are being tampered with. The Duo is cellular based, portable, and rechargeable. It doesn’t need Bluetooth, WiFi, or a hub to work. Duo should work in over 200 countries. Simply place it anywhere you want to monitor and let it watch out for you.
Duo sends you a SMS alert when your things are being messed with. The battery lasts up to a year. The device detects lights and motion.