The 23-12 (includes 23-12B & 23-24) high water alarm is the perfect device for your high water level detection needs. The switch powers up in an off state and meets or exceeds both the Canadian & U.S. Coast Guard standards. Currently in use by the U.S. Coast Guard, this switch is designed to precisely monitor water levels. The 23-12/24 will only activate only after detecting water for 3 continuous seconds. Once water has left the sensor, it will instantly turn off.
ALL HIGH WATER SENSORS AVAILABLE IN 24V