Fluid property sensors, fluid condition sensors, fluid level sensors, fluid quality sensors, fluid composition sensors, density sensors, dielectric constant sensors, viscosity sensors, temperature sensors, and sensor control modules for monitoring and/or controlling systems, processes and assets; fluid property sensors, fluid condition sensors, fluid level sensors, fluid quality sensors, fluid composition sensors, density sensors, dielectric constant sensors, viscosity sensors, temperature sensors, and sensor control modules for evaluating and monitoring solids, semi-solids, emulsions, fluids and multiphase systems; computer software to control sensors, sensor control modules and process control systems; computer software used for the manipulation of information from sensors, sensor control modules and process control systems