Thomas B. Haines, Editor in Chief of the AOPA Pilot magazines briefly discusses the accuracy of CiES digital fuel senders in his article Check Notams. Save Yourself Some Grief. Below is an excerpt of the article:

“With an IFR flight plan filed for the short trip, we climbed away from Johnstown as I carefully watched the fuel gauges. I had installed CiES digital fuel senders and new electronic fuel gauges a couple of years ago, so I knew exactly how much I had – but those yellow bars made me nervous.”

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