Humminbird AS-BP WeatherSense Fishing Condition Monitor

Features: Humminbird barometric pressure sensor. Refine your fishing tactics to changing weather conditions. Tracks barometric pressure in real time and displays the info. See barometer trend and digital readout on your sonar screen. Access advanced barometric pressure capability of your Matrix Fishing System. For Use With: WeatherSense Fishing Condition Monitor can be used with Matrix 10, Matrix 12, Matrix 15, Matrix 17, Matrix 20, Matrix 25, Matrix 27, Matrix 35, Matrix 37, Matrix 47 3D, Matrix 55, Matrix 65, Matrix 67, Matrix 77c, Matrix 87c, Matrix 97, 931c, 937c, 947c 3D, 981c SI, 987c SI.