Garmin GSD 24 Digital Black Box Network Sounder [010-00957-00]

¹ Please Note: The GSD 24 is only compatible with GPSMAP® 4000, 5000, 6000, 7000, 8000 series.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.