The Smart Sensor™ series is a micro-processor control based variable speed pump. Shur-Flo’s Smart Sensor™ precisely monitors your system’s water pressure and adjusts the motor’s speed, thus eliminating the need for a pressure switch. Corrosion resistant coated seamless motor shell and o-ring sealed end bells along with the protected electronic package make the Smart Sensor™ capable of handling even the harshest marine environments. Quick connect fittings included. Runs dry without damage. Ignition Protected. Self Priming, 12 volt DC. 3 Year Warranty.