The DEW Line P80 Fuel Flow Sensor is a high precision flow sensor for accurate metering of a variety of fuels. The P80 utilizes precision-machined elliptical gears to measure flow without creating undue restrictions. P80 may be used in Diesel, Gasoline, and Ethanol applications. Flow rates from 0.76 Gal/Hr to 253 Gal/Hr Resolution of 0.0004 Gal Max pressure 174 PSI Aluminum Alloy enclosure Line fitting 1/4 NPT F Diesel flow measurement requires two sensors (supply and return) Works with SeaGauge G2 Remote and SeaGauge Analog Gateway.