The Airmar 20-752-1 is a replacement speed insert designed for use with existing B744V and B66V transducer housings. This component is suitable for IT hardware resellers or marine electronics technicians who need to service or repair compatible Airmar transducer installations. It addresses the common issue of a failing or damaged speed sensor within the transducer assembly without requiring a full transducer replacement. This product is intended for businesses or individuals maintaining marine vessels equipped with Airmar B744V or B66V transducers, ensuring continued functionality of speed measurement systems. It provides a direct fit solution to restore operational integrity.