Fuel Flow Meter/Gauge Questions

[fdheld34]

WWP2 thanks for the web site...I just want to make sure I get a unit that is simple to use and is basically plug and play. How long does it take to hook up a flow scan gauge..do I have to have access to my fuel tank under deck??
Where does sensor attach to..fuel line/transom etc???

Wavelength....so with the Lowrance gauge meter..I would have to buy another sensor on top of the fuel sensor??? Is the paddle wheel a sensor that hooks up to the fuel flow gauge and then attached to the transom to determine speed and distance to get gallons per hour. Is is needed to have gauge work for gph or is it an option that could be utilized down the road??

What gauge all in all is the easiest to hook up out of the box and will give me gph??

-Thanks for bearing with my questions!!!!
-Fred