Drake Blind Bag Index Finger Trigger Releases NMEA 2000 power cableWARNING: This NMEA 2000 power cableWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer The arm of the GRF 10 is connected to the rudder of the boat and relays position information through the sensor to the mariner so they know where the rudder is giving them an added peace of mind when starting from a stopped position Key Specifications and Features: Please note: This product is designed with a clear cell phone sleeve that allows you to use your touch screen while protecting the phone from water