Bronze Low-Profile Thru-Hull Medium-Frequency CHIRP Transducer – 1kW, 18° Tilt, 85-135kHz Echonautics presents a range of powerful transducers from Dual Frequency CW to Low/Medium/High CHIRP and digital sensors, with excellent…Continue readingEchonautics Bronze Low-Profile Thru-Hull Medium-Frequency CHIRP Transducer – 1kW, 18 Tilt, 85-135kHz [BT87M1KW-18]