SEAFLO water level alarm is a safety reminder device that integrates vision and hearing. It can be used with electronic water level switches, dirt ball switches or other places (not limited to the use of cabin water level safety reminders, but can be used in other places that require safety reminders); When used in conjunction with the water level electronic switch, when the water level at the bottom of the cabin is higher than the safety line, the sensor switch provides power to the alarm, making it emit a red signal light to remind it, and at the same time it emits an alarm sound of ≥95DB to remind it. When the water level falls back to the safe water level, the alarm will stop emitting light and give an alarm.