SOR, Inc.: Pressure, Level, Temperature and Flow Switches and Transmitters SOR, Inc. SOR is a global supplier of process instruments. We design, develop and manufacture the most reliable electronic and electromechanical level, pressure, temperature and flow switches and transmitters available. Click here to see What's New ... Click on any of the icons above to learn more about SOR. Visit www.echOsonix.com to see the latest in ultrasonic level detection. Khan Named Regional Manager for Latin America Read about our new Regional Manager Kamal Khan. Latest Agency Approvals SOR has recently added K