The 23-12B 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 23-12B will only activate only after detecting water for 3 continuous seconds. Once water has left the sensor, it will instantly turn off.
• Waterproof - impermeable to all bilge substances
• No moving parts
• Will not pump pure gas, diesel or oil
• Eeasy to install
• 7 year unbeatable limited warranty
• Includes buzzer