- The document discusses intelligent pressure switches as a maintenance-free solution for process plants with many blind pressure switches that require costly maintenance. - An intelligent pressure switch called the One Series has no moving parts, making it vibration resistant and maintenance free. It has advanced diagnostics, a large display, and other advantages over mechanical switches. - The One Series provides benefits like interchangeability between plants, lower inventory costs, and a lower total cost of ownership compared to replacing blind switches with smart transmitters.