Product Description Humminbird 710161-1 XPT 9 20 T Portable Transducer. FEATURES: Hydrodynamic, Single or DualBeam (depending on which fish finder used with), 20/60 dgree, 200/83 kHZ with built-in temperature and 15 ft cable length. Mount on transom or side of most smooth-surface wood, aluminum or fiberglass boats. Heavy-duty suction up holds transducer at trolling speeding only. COMPATIBLE WITH: Matrix 10, 12, 15, 17, 20, 27, 67, 77, 87, 91 All PiranhaMAX (EXCEPT 240, 180, 165, 175, 176i, 195c, 196ci, 197c, PiranhaMAX 4, PiranahaMAX 4 PT, PiranahaMAX 4 DI) HDR650 All 100 and 300 Series (EXCEPT DI models) All 500 Series (EXCEPT DI models) ALL 900 Series (EXCEPT DI models and 3D models) All 1100 Seriecs (EXCEPT DI models) All HELIX Series (EXCEPT DI models) Amazon.com The Humminbird XPT 9 20 T Portable Transducer is designed to mount on the transom or side of most smooth surface wood, aluminum or fiberglass boats. This portable transducer attaches via a heavy-duty suction cup that provides temporary installation, and holds the unit at trolling speeds only, making it inappropriate for high-speed installations. The Humminbird XPT 9 20 T is a hydrodynamic, single- or dual-beam transducer, depending on which fish finder it is used with, and utilizes 24- and 53-degree cone-angle beams with 200- and 83 kHz operating frequencies. This unit includes a built-in temperature sensor, a 15-foot connecting cable, and all the necessary portable mounting hardware. The XPT 9 20 T is designed to be used with Humminbird's; Piranha 5, Matrix 15, Matrix 17, Matrix 25, Matrix 27, Matrix 55, Matrix 65, Matrix 67, FF515, FF535, FF565, PMAX10, PMAX15, and PMAX 20 sonar systems. This item is backed by Humminbird's one-year limited warranty.