The Endress Hauser FMU90-R21CA131AA1A is a versatile ultrasonic flow measurement device that operates on the time-of-flight principle. Designed for accurate flow monitoring, it features three SPDT relays and supports multiple functions including flow measurement, totalizing, level detection, and sample control. The unit also comes with preprogrammed OCM flow curves, making it adaptable to a variety of applications. This reliable instrument is available through BSP Automation, providing an excellent solution for process automation needs.