CleanSpace and also Freevolt
CleanSpace is a portable air quality sensor. It syncs with your smartphone and gives you a map of air quality in your home and while you are out and about. Useful if you want to avoid those heavily polluted areas.
What is interesting though, is that CleanSpace is the first device to use Freevolt technology. What’s that? Well, there is energy all over the place generated by WiFi signals here, there and everywhere. Freevolt uses wireless charging technology to harvest the waste energy generated by WiFi networks.
The end result, CleanSpace never needs to be plugged in. It is constantly trickle charging to keep itself going. Neat huh?