Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A] Marine Navigation & Instruments | GPS - Track Plotter Compatible with steering cylinder sizes

Compatible with steering cylinder sizes from 4-24 cu in

It has “Bullet-Proof Intelligence” in the form of 9 physical points of protection monitoring being scanned up to 10

SS164 and SS264 housings

Optical Bonding: Sporting an Optically Bonded 4

This transducer does not support Side Imaging or Down Imaging

Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A] Marine Navigation & Instruments | GPS - Track Plotter Compatible with steering cylinder sizesSSM 517A Earpiece Microphone for HX270, HX370, HX471 & HX400 The Standard Horizon SSM 517A Earpiece Microphone is compatible with HX270, HX370, HX471, and HX400. Specifications: Type: Microphones Box Dimensions: 1"H x 3"W x 4"L WT: 0. 15 lbs UPC: 788026176373