Maretron Fluid Pressure Monitor NMEA 2000 New Condition. Fluid level mode measures level by pressure at bottom of tank. Transducers sold separately. Features of Maretron Fluid Pressure Monitor NMEA 2000: Nemea 2000 interface Adapts up to six pressure transducers to the NMEA 2000 network Each channel independently programmable Included Accessories: FPM100-01 Documentation Package Contents: Maretron Fluid Pressure Monitor NMEA 2000 Maretron FPM100-01: Fluid Pressure Monitor NMEA 2000 New Condition