If you happen to have a small (analog) 0 to 1Volts panel meter lying around, that should do just fine.
Or you could tape a $5 Harbor Freight multimeter to the panel :)
(Hey, that could double as a battery monitor using a simple switch.)

Finn

Ed Anderson wrote:

I think the one Tracy sells is as good and inexpensive as they come.  All of the ones that I am familiar with use the same basic design (except for the latest ones that use the new (and expensive) so-called broad band sensor).  I personally like the ones that use the 3/4 wire sensor (these have their own heating element) as you do not have to wait for the exhaust gas to warm up the sensor before it start working.  They are a bit more expensive that the 1/2 wire sensor may $10-20 more.

 

I built my own LED A/F indicator  and integrated it with my fuel monitoring system.  But regardless of whether you build or buy, they are well worth having, in fact I would rather lose my EGTs than my LED A/F indicator.

 

Ed

----- Original Message -----

From: Bulent Aliev

To: Rotary motors in aircraft

Sent: Monday, December 06, 2004 3:18 PM

Subject: [FlyRotary] Re: Nice to Have Re: ECU oxygen sensor

On 12/6/04 2:20 PM, "Ed Anderson" <eanderson@carolina.rr.com> wrote:

I certainly would not draw that conclusion, Bulent.  I have found theLED  A/F indictors such a good indication of what my engine is doing that I would hesitate to fly without it now.  If the engine starts to stumble you immediately know whether it because its too much or too little fuel - sort of nice to know, trust me. {:>)

Ed Anderson

Thanks Ed,
By any chance can you recommend one A/F indicator?. I have installed the single wire O2 sensor that came with the engine. I may even replace it?
Bulent