User manual Garmin GPSMAP 521s (English - 84 pages)
GPSMAP® 400/500 series
Garmin GPSMAP 521s Sounder
User manual for Garmin GPSMAP 521s - a user manual, servicing manual, settings and specifications ofGarmin GPSMAP 521s - page 10 - User manuals and advice for your devices - User-Manual.info