Acoustic meters; Apparatus for wireless transmission of acoustic information; Electric sensors; Electronic security and surveillance devices, namely, electronic security tags and labels, acoustic tags, magnetic tags; Fiber optic cables; Fiber optic connectors; Fiber optic light and image conduits; Fiber optics; Heat detection systems comprised of fiber optic linear loop configurations, heat detectors, monitors; Metal cabinets specially adapted to protect telecommunications equipment in the nature of fiber optic cables; Sensors for determining acceleration; Sensors for determining position; Sensors for determining temperature; Sensors for determining velocity; Surface acoustic wave sensors; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repeaters, and remote presence management products, namely, switches, and console, alarm, sensor and power management devices; Vibration sensors