SeaTalkNG  Auxiliary Alarm BuzzerThe Raymarine SeaTalkNG Alarm Buzzer is a network accessory that repeats alarm and alert tones from compatible networked devices ensuring they can be heard on-deck and below decks as needed. The powerful 100 dBm SeaTalkNG Auxiliary Alarm Buzzer can repeat many different types of network alarms from connected Raymarine autopilot systems, instruments, AIS receivers and NMEA2000 engine monitoring systems. The compact, waterproof alarm buzzer connects easily to any empty spur connection on your boat's SeaTalkNG network. The alarm module is powered by the network and works immediately - no setup or calibration is required.