A smart valve sensor for valve actuators is not a specific brand but a product category used in industrial automation. These sensors are typically produced by companies specializing in industrial control systems, such as Emerson (USA), Siemens (Germany), or Schneider Electric (France). They serve industries like oil & gas, water treatment, and manufacturing, providing real-time monitoring and control of valve positions, pressure, and flow rates. Key products include wireless position sensors, IoT-enabled actuators, and predictive maintenance solutions.