Meet the O2: a smart device that can serve as an environment monitor, activity tracker, sleep monitor, and item finder. You can attach it to the outside of your home to track humidity, temperature, and pressure. You can also put it in your bag or on your wrist to monitor activity. The device can also let you know when you are about to leave a valuable item behind. It also measures your sleep. The battery (CR2032) is good for 90 days.
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We are not sure whether the developers will get to keep the name for the product (for legal reasons with O2). Nevertheless, the idea looks interesting.
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