Humminbird XNT-9-SI-180-T TM Transducer [710200-1]Humminbird XNT 9 SI 180 T New transom mount transducer design. Compact dual side imaging. 20 74 84 degree, 200 83 455 kHz with built in temperature. New design is more secure and is not a prone to kick up at high force of waves. It has an improved running angle and a optional lock down screw to override the kick up. Has same hole pattern as some older version transducers For Use With: 797c WARNING: This product can expose you to chemicals including