I THINK he means once the alarm set off, does the horn just keep blowing until you turn off the alarm or does it blow for like 5 minutes, stop for a minute, blow for 5 minutes, etc? My boat does not have an alarm and Im not that familiar with it myself.Jim EbarbMany, LA (Toledo Bend Lake)2004 Cougar/ 225 OptimaxHumminbird Helix 12 Chirp SI on BalzOut Mount at bowLowrance HDS 7 at bowHumminbird Helix 12 Mega SI on Ram Mount at ConsoleLowrance HDS 8 in dash at console