Navman 3100 Bi-data Marine Speed & Depth Instrument
Navman 3100 Bi-Data Marine instrument complete with speed & temperature log, installation manual in very good condition. The display unit is in instrument is in excellent working order. Included is a spare paddle wheel. I do have the depth transducer (complete) but am not sure whether it works. I’m prepared to through it in, as anybody with advance electronic knowledge could get it working or purchase a new depth transducer. The display unit is in working condition with no display screen failu