Echonautics BT70MB300 95-155kHz Medium CHIRP 300watts 0° Tilted ElementModel: BT70MB300-00A low-profile thru hull CHIRP transducer, that matches vessels deadrise to specific angle.•       Designed to minimize drag and to perform at high speeds•       Specifications•       Function       Depth and Temperature•       frequency     CHIRP 95-155kHz•       Mount style  Thru Hull•       Tilt/deadrise 0° tilted element; for 0° to 7° hull deadrise•       Material        Bronze•       RMS Power  300 Watts•       Hole diameter         2.38 in•       Cable length 27ft•       Temperature sensor NTC•       Acoustic window     Urethane