They’re powered by a rechargeable lithium-ion battery that’s ... security purposes with the motion-activated sensor." They ...

The battery-operated, motion-activated toilet light hangs on the bowl’s outer rim, illuminating it as someone walks by, ...

Powercast's RFID-powered, wire-and-battery-free sensor monitoring ... Powercast's energy harvesting, passive light, temperature and humidity sensor as it will open up new applications in health ...