【Strong Compatibility】Directly replace for part number 010-11417-10. Heading sensor compatible with Garmin chartplotters, supports basic calibration replacement for echoMAP models and other NMEA 2000 monitors. 【Accurate Heading, Fast Calibration】Heading output rate is 10 Hz and the accuracy is plus or minus 3 degrees. Gives you fast calibration and excellent heading accuracy in any water. 【Marine Grade Material】 Made of premium plastic, rubber, steel and copper materials. After rigorous testing, oil resistance, seawater resistance, waterproof, anti-rust, anti-corrosion, provide a better calibration and longer service life. 【Package Includes】Heading sensor with 6 ft integrated NMEA 2000 drop cable and T-connector. Come with installation instructions to help you install easily, saving your time and energy. 010-11417-10 Heading Sensor