Originally Posted by Evolution10
I have duel senders in each tank - I used the senders provided by CIES (think Cirrus/Beechcraft among others). Works great and is incredibly accurate. I get readings all the way to empty. Never have I experienced any deviation in reading versus actual! Highly recommended.
The single sender will provide good readings all the way to empty. It is readings from full down to about 3-4 gallons burned where the single sender is not accurate. I have flown the EI dual digital fuel gauge with the standard senders in the RV-6 since 1999 and they have been very accurate except for the top three gallons.