Valve sensors for rising stem valves are not a specific brand but a category of industrial components used to monitor valve position and movement. These sensors are typically offered by various global manufacturers specializing in industrial automation and valve solutions. Companies like Emerson (USA), Siemens (Germany), and Honeywell (USA) produce such sensors for industries like oil & gas, water treatment, and chemical processing. The sensors detect the linear displacement of rising stem valves, ensuring precise control and safety in critical applications. Products include proximity sensors, limit switches, and linear position sensors designed for harsh environments.