XNT-9-DB-74-T Transom Mount Transducer f/1159ci HD XD | 959ci HD XD | 859ci HD XD | 688ci HD XD, 678c HD XD Mount on the transom(Back of the boat) The impact release feature pivots transducer out of the way if struck by an object. Warning [https://productimageserver.com/prop65/6pt.png]WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov [http://P65Warnings.ca.gov].