The installation process is simple and clear: simply install the sound alarm device in the position of buzzer and fix the wiring. Special attention: Connection the gray cable to the negatived poles and the red cable to the positive poles (please confirm according to the actual product color This sound alarm device is ideal for replacing damaged or worn old speakers, or repairing alarm devices with reduced After installation, it can provide more sensitive and loud alarm functions for your outboards motor, warning potential risks and safeguarding navigation Produced by the manufacturer strictly following the factory standards, each product undergoes multiple professional factory tests to ensures compatibility and consistency with the equipment, and the is good. ​ Crafted from ABS , excellent impacts resistance and wear resistance. Compared with ordinary materials, its service life is extended by more than 30%. Long time use is not easy to deforms or age, and the is good. ​ This sound alarm device is specifically for the new marine alarm component, without the need for complex debugging. ​, Manufacturer: Haodream