190501-18-00-00 Bently Nevada Velocity Transducer Description The Bently Nevada 190501-18-00-00 Velomitor CT Velocity Transducer is a specialized low-frequency piezoelectric sensor designed for monitoring casing vibration velocity in machinery such as cooling towers and air-cooled heat exchangers operating at or above 90 RPM (typically 100 to 300 RPM). 190501-18-00-00 Details FAQ 1. What is the primary use of the Bently Nevada 190501-18-00-00 Velomitor CT Velocity Transducer?