Compact Dual Trumpet Horn features a prewired, sealed sound unit is constructed of 100% stainless steel exterior with a 304 stainless steel diaphragm. Mounting bracket can be used as a wiring template. When installed, the trumpet should point slightly downward to permit water drainage. At 110 decibels and a frequency (Hz) of 460±15/415±15, this horn meets US Coast Guard's COLREGS and ABYC standard A-23 for use on vessels under 12m (39'). 12VDC. NMMA Type Accepted #2577072.
