[ telecommunications switches, servers, gateways, and wireless access points; powerline communications and networking devices, namely, gateways, extenders, couplers, and bridges for connecting networks; computer software for managing, monitoring, and controlling telecommunications systems access and use; ] thermostats; electric control devices for heating and energy management; electric or electronic sensors for sensing occupancy; electric and magnetic contacts for sensing occupancy; electronic controllers for HVAC equipment; electrical plug load controllers; computer software for managing, monitoring, and controlling HVAC equipment

installation and maintenance of HVAC equipment and systems

[ telecommunications services for providing multiple-user access to the internet ]

remote monitoring services of heating, ventilating, and air conditioning apparatus