Humminbird HELIX 5 CHIRP/GPS Combo G3 [411660-1] Marine Navigation & Instruments | Compasses Ray53 also supports the connection

Ray53 also supports the connection of an optional remote speaker (A80542) to provide audio at a second location

no cables ONLY works with Raymarine st60 and i60 series wind displays

Size of Boat - 42' to 47' (12 to 14 M)

Nominal Diameter:5/8" (16mm)

Humminbird HELIX 5 CHIRP/GPS Combo G3 [411660-1] Marine Navigation & Instruments | Compasses Ray53 also supports the connectionHELIX 5 CHIRP GPS Combo G3 If fishing is in your DNA, there's no such thing as "too early" or "too far." The HELIX 5 Series answers the call with an uncompromising 5" widescreen, color display. This HELIX 5 CHIRP GPS G3 model features Dual Spectrum CHIRP 2D sonar, internal GPS with Humminbird Basemap, and AutoChart Live built in, with additional compatibility for Humminbird and Navionics premium fishing charts. Features: Keypad control: Master HELIX