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About JPI Started in 1985, by engineers that were also Pilots, JPI is a highly respected and experienced avionics company. Our business focuses on the "American Dream". We design, develop, manufacture and sell aircraft avionics systems at our locations in California. Since the inception of the EDM-500 in 1986, we have specialized in the recording of all engine parameters. JPI has pioneered the low cost Fuel Flow analyzers, which were twice what they cost now. Recently, due to our overall success with other products and reputation for accuracy and quality, JPI has developed a new line of Primary instruments for Singles (EDM-930) and Twins EDM-960 to replace all the instruments in the aircraft panel.