GT15M-TM 探頭最適合講求清晰船底畫質與鮮明的魚弧，以及出色的目標區隔，深度達 1900 英尺的釣者。
8 芯探頭搭載中頻帶 CHIRP 傳統聲納 (85-165 kHz) 且配備 600 W 功率等級。可安裝在船尾板。
GT15M-TM transducer is perfect for fishermen who want clear bottom definition under the boat as well as crisp, clear and wide fish arches with excellent target separation to depth up to 1,900 feet. The 8-pin transducer features mid-band CHIRP traditional sonar (85-165 kHz) and has a power rating of 600 W. It can be mounted on the transom. Follow the included installation instructions carefully to avoid damaging your boat.