Sensors for measuring concentrations of chemicals in water; Sensors for the determination of temperatures, positions and distances; Vehicle detection equipment, namely, display monitors, computers, image sensors, video cameras, and operating system and application software to detect vehicle location; Vehicle mounted GPS sensor for determining the rate of motion for a vehicle; Vehicle safety equipment, namely, back-up sensors and cameras; Vehicle tracking devices comprised of cellular radio modules, computer software and computer hardware, sensors, transmitters, receivers and global positioning satellite receivers, all for use in connection with vehicle tracking, vehicle monitoring and anti-theft vehicle alarms; Acceleration sensors; Alarm sensors; Automatic solar tracking sensors; Coolant-temperature sensors; Electric sensors; Electronic sensors for measuring solar radiation; Electronic data relays for sensors; Electronic motor vehicle ignition tuning kits comprised of an electronic control unit that monitors engine performances and delivers re-calculated sensor values to the original engine control unit to increase engine performance; Electronic proximity sensors and switches; Gas sensors for measuring gas concentration; Humidity sensor with integrated digital and analog output circuitry used in automotive, appliance and light industrial applications to sense both relative humidity and temperature environmental conditions; Industrial calibration sensors; Infrared sensors; LED position sensors; Light systems comprising light sensors and switches; Liquid level sensors; Motion sensors; Motion sensors for security lights; Motion recognizing sensors; Oil level sensors; Optical sensors; Parts for anti-theft automotive alarms, namely, electronic sensors, remote control transmitters and receivers for remotely operating land vehicles; Photoelectric sensors; Piezoelectric sensors; Pollutant sensors; Pressure sensors; Pressure switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems; Proximity sensors; Safety and driving assistant system for mobile vehicles and vessels comprised of electronic proximity sensors and switches, high-resolution cameras, integrated circuits for the purpose of imaging processing, and display monitors; 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; Temperature sensors; Temperature switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems; Timing sensors; Touchscreen sensors; Turbine control systems comprising electronic sensors and related software; Ultrasonic sensors; Vibration sensors; Vibration sensors for installation in windmill housings