Distech Controls was the first building automation manufacturer to offer a
turnkey, commercially available wireless solution, based on EnOcean’s wireless
battery-free technology. The wireless technology is powered by energy drawn
from movement, light or even changes in temperature rather than batteries. This
harvested energy is used for transmitting sensor data over a distance of up to
30 meters within a building, to control and detect conditions related to
lighting, blinds, occupancy, humidity, heating or air conditioning without the
need for cabling.
Distech Controls offers a variety of wireless battery-less sensors, switches
and other devices, and has integrated the wireless receiver on its controllers,
allowing for the seamless addition of a wireless sensing solution in new and
retrofit buildings.
Go here for details.