9 Surveying instruments; scientific, nautical, surveying, measuring, signaling and controlling apparatus and instruments, namely, sensors, radio and radar base stations and transponders that measure distances between objects and provide two- and three-dimensional positions of objects using radio signal propagation times; transponders and radio and radar base stations with integrated time synchronization features; Ethernet controllers; wireless controller to monitor and control the functioning of other electronic devices; digital signal processors; global positioning system (GPS), and radar sensor systems and analyzers, namely, computer hardware used for measuring distances, absolute and relative motion, and positions of persons and objects; apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity; apparatus and blank data media for recording, transmission and reproduction of data, sound and images, namely, magnetic disks, optical discs, CDs, flash drives, DVDs, and memory cards; apparatus for recording and transmission of data, sound, and images, namely, transponders and central processing units sold together as a unit; antennas for wireless communication apparatus; Ethernet cables; radio receivers and transmitters; LAN (local area network) hardware; calculating machines; data processing equipment and computers; downloadable computer software for computing distances and two- and three-dimensional positions and displaying such information in text, graphical and animated formats; computer software stored on storage devices, namely, magnetic disks, optical discs, CDs, flash drives, DVDs and memory cards for microprocessor units, for computing distances and two- and three-dimensional positions and displaying such information in text, graphical and animated formats; electronic equipment and their components, namely, electronic combiners for connecting antennas and receivers, transponders, radio and radar base stations with integrated time synchronization features for use with distance measuring sensors and in two- and three-dimensional position measuring sensors using radio signal propagation times; radar sensor systems, including systems composed of physically separated working sensors, used for measuring and analyzing absolute and relative motions of persons and objects, for two- and three-dimensional identification of positions of persons and objects, and for measuring distances