Acceleration sensors; Coolant-temperature sensors; Electronic plant moisture sensor; Industrial calibration sensors; Liquid level sensors; Occupancy sensors, namely, electronic devices which detect the presence of occupants and control the lighting system accordingly; Optical sensors; Pressure sensors; Proximity sensors; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors; Sensors and detector units for use in controlling the actuation and operation of automotive safety apparatus and equipment; Sensors for determining position, velocity, acceleration and temperature; Sensors for the determination of temperatures, positions and distances; Telecommunications equipment and software, 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; Temperature sensors; Timing sensors; Ultrasonic sensors; Vibration sensors for installation in wind mill housings