The sensor mounting plate is designed for XNT sensors, compatible with models XNT 9 20, XNT 9 20 T, XNT 9 QB 90 T, XNT 9 QB 90, and XNT 9 SI 180 T. The 7400931 XNT Transom Mount Hardware Kit works with fish detection sensors and is compatible with XHS 9 HDSI 180 T, HELIX 12 SI GPS, HELIX 10 SI GPS, HELIX 9 SI GPS, 1199ci SI GPS, 999ci SI GPS, 1198c SI GPS, and 998c SI GPS. The sensor mount bracket kit is constructed from high-quality materials suitable for use in ocean or lake environments. Durable design ensures long-term performance. The mounting kit offers a stable installation for improved detection accuracy. Simple installation can be completed in minutes, enhancing your fishing experience. Support is available if you have any questions. Color: Black. Material: Plastic. Package Contents: 1 x transducer mount kit. Only the items listed are included; other items are not included. Note: Lighting and display differences may result in slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.