Garmin B75M Bronze 20 Degree Thru-Hull Transducer - 600W, 8-Pin [010-11636-22] Boat Outfitting | Trolling Motor Accessories They have been wind tunnel

They have been wind tunnel tested to wind speeds of 80 knots

or when the fish finders of other ships in the area cause interference

Type: Wind Indicator

** Specifications:

which provides for detailed detection of seabed targets

Garmin B75M Bronze 20 Degree Thru-Hull Transducer - 600W, 8-Pin [010-11636-22] Boat Outfitting | Trolling Motor Accessories They have been wind tunnelAirmar B75M w 20 Tilt 600W Flush mounted bronze housing,tilted element inside the transducer accommodates all hull deadrises and eliminates the need for a fairing block. This broadband transducer is designed to allow both traditional and Spread Spectrum scanning when used with a compatible sonar like the GSD 26. It features a bronze, thru hull mount design with 20 degree tilt and provides both depth and temperature data to your Garmin Marine Network