Description: This is a brand new, Garmin GT51M-TM Transom Mount CHIRP Transducer, sold without the original box. Ideal for anglers and offshore boaters, this model supports high-performance CHIRP traditional sonar, ClearVü, and SideVü scanning. 🔧 Specifications: • CHIRP Traditional (Mid-band: 80–160 kHz) • ClearVü & SideVü (260/455 kHz) • 12-pin Garmin connector • Rugged transom mount design • Model: GT51M-TM • Garmin Part #: 010-01966-00 • Cable and housing are unused and in pristine condition Condition: New, out of box. Mounting hardware included. Sold As-Is. Local pickup or shipping available.