Water treatment, wastewater treatment, and industrial process measurement and control systems composed of computer hardware and recorded software sold as a unit for continuous measurement and control of liquid and solid levels in storage vessels and man-made and natural conduits, continuous measurement and control of liquid and solid volume in storage vessels and man-made and natural conduits, single point level measurement of liquids and solids in storage vessels and man-made and natural conduits, measurement and control of liquid flow in full and partially-full man-made and natural conduits, measurement and control of slurry flow in full conduits, non-invasive measurement of liquid levels in man-made and natural conduits in the nature of flumes and weirs, detection of entrained air and solids in fluids flowing in conduits, and measurement and control of sludge interface level in sedimentation tanks and clarifiers; Water, wastewater, and industrial process measurement and control devices for continuous measurement and control of liquid and solid levels in storage vessels and man-made and natural conduits, namely, level switches and level indicators; Water, wastewater, and industrial process measurement and control devices, namely, electronic controllers and technical measuring apparatus and instruments for controlling and measuring the quantity of liquids and solids in the nature of volume in storage vessels and man-made and natural conduits; Water, wastewater, and industrial process measurement and control devices for measurement of liquids and solids in storage vessels and man-made and natural conduits, namely, single point level switches and single point level indicators; Water, wastewater, and industrial process measurement and control devices for measuring and controlling liquid flow in full and partially-full man-made and natural conduits, and measuring and controlling slurry flow in full conduits, namely, flow switches and automatic control valves; Water, wastewater, and industrial process measurement devices for non-invasive measurement of liquid levels in man-made and natural conduits in the nature of flumes and weirs, namely, liquid level sensors; Water, wastewater, and industrial process measurement devices for detection of entrained air and solids in fluids flowing in conduits, namely, flow switches; Water, wastewater, and industrial process measurement and control devices for measurement and control of sludge interface levels in sedimentation tanks and clarifiers, namely, level switches and level indicators; Electrical transducers; Sensors, namely, sensors for measuring vibration, electromagnetic measuring detectors, sensors for measuring paddlewheel motion and velocity, sensors for measuring turbine motion and velocity, differential pressure sensors, temperature sensors for thermal mass, Coriolis liquid flow sensors, sensors for measuring dissolved oxygen for non-medical purposes, sensors for measuring turbidity, sensors for measuring mass of suspended solids, sensors for measuring density for non-medical purposes, resistance temperature detectors (RTD), and sensors for measuring thermistor temperature; transmitters, namely, noncontact radar apparatus for transmitting radar through the atmosphere; transmitters, namely, electromagnetic spectrum radar transmitters, two-wire digital transmitters, analog electric current transmitters, analog electric current transmitters that also transmit superimposed Highway Addressable Remote Transducer communication signals, electrical transmitters in the nature of relays, electrical transmitters in the nature of open collector relays, dry-contact switches in the nature of radio technology transmitters, transmitters of electronic signals, and transmitters of wireless signals; Water treatment, wastewater treatment, and industrial process measurement and control systems and devices for measuring and controlling the level and flow of liquids, sludge, and slurry, namely, level and flow switches for liquids, liquid point level and flow switches, liquid level and flow gap sensors, liquid/slurry flow sensors, liquid flow sensors, liquid flow switches, rotating paddle switches for solids in the nature of a solid level sensor, electronic float switches for liquids in the nature of a level sensor, sensors for detecting the presence of sand in liquids, and flow sensors for detecting solids in ducts, chutes and pipes; field environmental level, velocity, temperature and flow logging devices, namely, device for recording and transmitting data; parts and fittings for the aforesaid goods, namely, component parts in the nature of computer hardware; Downloadable software for the aforesaid goods, namely, for operating the aforesaid goods [ ; none of the aforesaid for use or application in relation to apparatus for transmission or reproduction of sound, and also excluding digital area cameras, compact discs, DVDs, juke boxes, audio players, audio amplifiers, headphones, earphones, speakers, loud speakers, audio speakers, USB hardware, wireless speakers, remote controllers for apparatus for the transmission or reproduction of sound, portable charging apparatus for tablet computers and mobile phones, remote control apparatus for apparatus for the transmission or reproduction of sound, remote controls for stereos, speakers and audio players; parts and fittings for the aforesaid goods, namely, electric cables, wires, conductors and connection fittings therefor ]