Working used Raymarine SeaTalk / NMEA bridge, with manual. Unit is missing all but one of the cable grommets but otherwise is ready to run. Unit is shown in testing with NMEA heading sensor and SeaTalk display, data crosses over fine. All is guaranteed working with 60 day warranty. 

The display and cabling is shown for demonstration only, you are receiving box and manual ONLY!

Free USA shipping, $25 WORLDWIDE plus any customs fees/ VAT.