MisfitSELF Posted September 9, 2022 Report Share Posted September 9, 2022 (edited) Out of curiosity, would the engine probes (CHT, EGT) for an Insight G4 work if hooked up to a Garmin GI-275 EIS? A follow-on question: if they did work, with the addition of Tach, Oil P, Oil T, Fuel Flow, Fuel Pressure, and quantity --> could this replace the certify gauges? A little bit of back story: about 4 years ago, I upgraded my Insight GEM 602 to a G4 because I wanted to be able to download my data and want the flasher display - AND - I didn't want to go through the trouble and expense of replacing all my gauges. Now a few years later, I regret that I didn't bite the bullet and get a certified EIS that could replace my legacy gauges. I'm thinking that sometime in the next couple of years I may do this and am trying to figure out my options. Bruce Edit: Here's what the Garmin site says about using non Garmin probes: Due to the variety of sensors used in aircraft engines, each individual sensor must be evaluated. For advice on which EIS sensors are approved for the GI-275, please contact your local authorized Garmin Dealer. Edited September 9, 2022 by MisfitSELF Added info from the Garmin Website Quote Link to comment Share on other sites More sharing options...
PT20J Posted September 9, 2022 Report Share Posted September 9, 2022 I believe that the GI 275 supports either Type-J or Type-K CHT probes, and Type-K EGT probes. According to the GEM 602 manual, Insight uses Type-J CHT probes and Type-K EGT probes. 1 Quote Link to comment Share on other sites More sharing options...
philiplane Posted September 9, 2022 Report Share Posted September 9, 2022 probes are probes. For example, a type K EGT thermocouple, no matter who makes it, will produce the same readings. 2 Quote Link to comment Share on other sites More sharing options...
carusoam Posted September 10, 2022 Report Share Posted September 10, 2022 If not sure what type probes you have already… Thermo couple wires are color coded to indicate what type they are… Often, their connectors may be coded as well… Search the web they will be easy to find… Best regards, -a- Quote Link to comment Share on other sites More sharing options...
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