Garmin GCV 20 Ultra HD Scanning Sonar Black Box w/GT34UHD-TM Ultra HD Transom Mount Transducer [010-02055-00] Anchoring & Docking | Docking Accessories It is fully waterproof and

It is fully waterproof and can be pole or surface mounted on any vessel

and landmarks for enhanced situational awareness

toggle between the ultra-bright strobe or the SOS strobe to visually alert Search and Rescue of your location

Fully adjustable decent speed

Garmin GCV 20 Ultra HD Scanning Sonar Black Box w/GT34UHD-TM Ultra HD Transom Mount Transducer [010-02055-00] Anchoring & Docking | Docking Accessories It is fully waterproof andGCV 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)