Temp probe RPM Air Gap

plumkrazee70 said
Hello Everyone. I have a 68 340 with the Air Gap and am adding a Dakota Digital fan controller, which requires the temp sender to be electric. I have a mechanical temp gauge, so I need to purchase an electric temp probe.

I have labeled the picture below with what I have currently. Can I use either of the two purple arrows for the new temp probe? If not where else can I put a second probe?

Thanks!
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if they work anything like my electric sending unit for the autometer gauges you may have to ground the sensor too. I had to on both my vehicles with aluminum intakes. I just wrap a band clamp around the sensor then ground the band clamp with a female spade connector to the end of it.