FAST Air Fuel Meter??
 

looking for a dual air fuel meter for my boat. anyone here has ever tested with this meter? good/bad?Fast 170402 Gasoline Air/Fuel Meter

The FAST unit is a good piece. I've been using the dual sensor for 5yrs without any issues.

i also use that unit and i feel it is one of the best out there.

Thanks for all the good info. Do you run it all the time. Do you have to have dry tail pipes.

The FAST unit is not designed to be installed in the boat. Use it to finalize your tune up and then remove. If you want permanent afr gauges, Innovate makes some nice stuff and there are many others out there as well. With any O2 sensor, it needs to be installed where it will not see any moisture.

I am using a NGK Powerdex . Its a very simple, compact unit, that can be calibrated for accuracy. The display is very easy to read while underway. You can get them for 259 bucks on amazon, but its only a single 02 setup. I shared the FAST one with Mike Tkach, and it also worked well. Only thing I didnt care for about the Fast one, was the connectors seemed kinda cheap where the 02 leads plug into the monitor. I like the connector much better on the NGK, and the large easy to read display. The NGK comes with a 13ft power cable, which is kinda short for some boats. The fast one is available with 20 or 22ft cables i think?

http://www.ngksparkplugs.com/product...x.asp?mode=nml