The IBUKI STM-8Z is a high-performance piston horn designed for marine signaling applications. Engineered for reliability in harsh maritime environments, it is suitable for vessels with a length of 20 to 75 meters. This model integrates a solenoid valve for easy electrical operation, ensuring clear and powerful sound signals for safe navigation. The STM-8Z complies with the international regulations for preventing collisions at sea (COLREG 1972), making it a trusted choice for commercial and private vessels worldwide. Its robust construction and efficient air consumption provide a dependable auditory signaling solution.