Johnson Bilge Alert - High Water Alarm with Ultima SwitchNew digital technology for high water warning using the patented Mirus field effect cell. Fully sealed liquid detector never comes in contact with water, will not corrode or be affected by oil or foreign matter. Bilge Alert detects water and sends a signal to the warning device (100 db) and switch, conveniently mounted on a panel. A three-way rocker switch allows you to test, turn off and operate the warning device.
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