B785C-M CHIRP Bronze Thru-Hull w/Fairing Block - 600WFeatures: Thru-hull bronze model with fairing Same physical size as a B744V 600W power rating Depth and fast-response water temperature sensor Available only in the Medium frequency band (M : 80-130kHz) with bare wire cable This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No Owners Manual Url: https://productimageserver.com/literature/ownersManual/71825OM.pdf