Process measurement and control systems and devices for continuous liquids and solids level in storage vessels and man-made or natural conduits, continuous liquids and solids volume in storage vessels and man-made or natural conduits, point liquids and solids level in storage vessels and man-made or natural conduits, liquids flow in full and partially-full man-made or natural conduits, slurry flow in full conduits, liquids level when used alongside flumes or weirs allowing calculation of flow through manmade or natural conduits, detection of entrained air or solids in fluids flowing in conduits, pump station management and optimization, sludge interface level in sedimentation tanks and clarifiers, pipeline inspection gauge (PIG) detection in conduits, thermal energy (heat) transfer in hydronic systems, water quality metrics, and vibration detection in mechanical structures; Electrical transducers; Sensors, namely, non-contact ultrasonic for transmitting sound through the atmosphere, non-contact ultrasonic for transmitting sound through metal or plastic conduits, submersible ultrasonic for transmitting sound through fluids, non-contact radar for transmitting through the atmosphere, vibration, electromagnetic, paddlewheel, turbine, differential pressure, thermal mass, Coriolis, dissolved oxygen, turbidity, suspended solids, density, RTD temperature, and thermistor temperature; transmitters, namely, ultrasonic frequency, radar electromagnetic spectrum, two-wire digital, current analog, current analog with HART (Highway Addressable Remote Transducer) communications superimposed, relay, open-collector, dry-contact switch, transmitters of electronic signals, transmitters of wireless signals; process measurement and control systems and devices, namely, ultrasonic continuous level and flow measurement systems, ultrasonic level, flow and pump control systems, electronic ultrasonic pump control system, ultrasonic pump and level and flow management system, industrial ultrasonic level management system, ultrasonic level and flow measuring devices, level and flow switches for liquids, ultrasonic level controlling devices, ultrasonic level and flow measurement controllers, liquid point level and flow switches, ultrasonic point level and flow sensors, vibrating ultrasonic point level and flow switches, liquid level and flow gap sensors, liquid/slurry flow sensors, liquid flow sensors, ultrasonic pump controllers, ultrasonic level controllers, ultrasonic flow controllers, open channel ultrasonic flow meters, liquid flow switches, vibrating forks for solids in the nature of a level switch for monitoring and controlling ultrasonic systems, rotating paddle switches for solids in the nature of a solid level sensor, ultrasonic gap switches for liquids, electronic float switches for liquids in the nature of a level sensor, sand sensors, flow sensors for detecting solids in ducts, chutes and pipes; ultrasonic area-velocity flow sensors and flowmeters; clamp-on ultrasonic liquid, sludge, slurry flow sensors and flowmeters; clamp-on ultrasound flow switch and clamp-on ultrasound flow detector; 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; Downloadable software for the aforesaid goods, namely, for operating the aforesaid goods