The Water Witch 23-12B High Water Alarm is the perfect device for your high water level detection needs.
The switch powers up in an off state, this switch is designed to precisely monitor water levels and sound an alarm when it detects water at its location for more than 3 continuous seconds.
Once water has left the sensor, it will instantly turn off.
• Includes both sensor switch and integral buzzer
• Waterproof - impermeable to all bilge substances
• No moving parts
• Normally open switch
• Will not activate in pure gasoline, diesel, or engine oil
• Meets or exceeds both the Canadian & U.S. Coast Guard standards
• 7 year limited warranty
• Dimensions: 2-5/8"W x1-5/8"H x 1-5/8"D
Note — The mucus produced by fish and other marine organisms can defeat these sensors.
Fisheries, therefore, does not recommend using this product on vessels used for fishing where fish residue can collect in the bilge.