Garmin GCV 20 Ultra HD Scanning Sonar Black Box w/GT34UHD-TM Ultra HD Transom Mount Transducer [010-02055-00] Boat Outfitting | Deck / Galley but few know what it

but few know what it means

Weight scale slot

Exceeds the output of 20W halogens by up to 300%

Designed for Marine Use

Garmin GCV 20 Ultra HD Scanning Sonar Black Box w/GT34UHD-TM Ultra HD Transom Mount Transducer [010-02055-00] Boat Outfitting | Deck / Galley but few know what itGCV 20 Ultra HD Scanning Sonar Black Box with GT34UHD TM Ultra HD Transom Mount Transducer Add Ultra High Definition Scanning Sonar to Your Compatible Chartplotter The easy to install, networkable GCV 20 sonar black box allows you to redefine clarity and detail. Add any of the 3 GT34UHD transducer models to see stunningly clear Ultra High Definition ClearV and Ultra High Definition SideV scanning sonars with frequencies ranging from 0. 8 MHz (800 kHz)