The sensor's unique "field effect" technology is programmed to recognize the dielectric constant of water only. In the event of an onboard oil spill, straight motor oil that enters the bilge will not turn the pump on. It's part of Rule's continuing commitment to preserving our waterway.
Features and Benefits
• All-in-one pump & switch - No float switch required
• Pump turns on when water level rises & shuts off when water is removed
• Will not pump oil - Straight motor oil will not turn pump on
• Snap-off strainer for easy cleaning
• Anti-Fouling impeller
• Limited three year warranty
