Professional: 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. This 7400931 XNT transom mount hardware kit is also suitable for fish detection sensors. 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. High Quality: The sensor mount bracket is constructed from durable materials suitable for marine and freshwater environments, offering long-lasting performance. Provides a stable installation for improved detection accuracy. Simple and quick to install, allowing for enhanced fishing and outdoor experiences. Support is available for any issues. Color: Black. Material: Plastic. Package Contents: 1 x Transducer Mount Kit. Note: Light reflection and display differences may cause slight variations in color. Measurement error allowance: +/- 1-3 cm.