Probe support to stick for Kayak (compatible probe Garmin 77/200kHz and GT20 - TM) - GARMIN With the versatile transducer - in - kayak hull solution, anglers can take to the waters with their favorite Garmin device. The bracket is used to install the Garmin HD - ID™ bi - beam transducer (77/200 kHz) and the GT20 - TM transducer (77/200 kHz/ClearVü). It is used in conjunction with a fish finder and compatible marine handsets. It withstands continuous immersion without risk of detachment and offers complete protection for your probe (sold separately) within the kayak. The backing (foam sponge with adhesive) comes with installation instructions. Installation without tools. However, follow the instructions carefully to avoid any damage to the boat. Compatible devices - GT20 - TM probe - Striker 4 (Plus, Vivid) - Striker 5 (plus, Vivid) - Echomap 42 hp (more)