The GT23M TM sensor is ideal for coastal and deep sea fishermen who want traditional CHIRP and CHIRP ClearVü sonar functions. This rear mirror mounting sensor always shows clear fish bows with excellent echo separation as well as precisely defined structures below the boat. The 8-pin transducer offers traditional CHIRP echo sounder functions in the mid-frequency range (80 to 160 kHz) and has a rated power of 600 W. The CHIRP ClearVü element (260/455 kHz) has a rated power of 500 W.