The CIES senders were $830 for the pair,
CiES Fuel senders do require a power wire for operation
https://ciescorp.net/applications/small-aircraft/cessna
If you go with Aero space gauge, the senders require the Aerospacelogic FL202D, senders will also hook up to other gauges.
Bought my gauge a year ago, not sure of current price, Aero Space Logic out of Ontario, Canada,
http://www.aerospacelogic.com/index.php ... uct_id=249
Both CIES and Aerospace Logic very helpful by phone.
I have heard claims that they are within a gallon or two, will let you know when my A&P installs them.
I agree, my gauges have been all over the place also. On more than one occasion I’ve landed after long flight, I have long range tanks, thinking my fuel level was equal in both tanks, only to find out after landing that my left tank was empty and right tank half full.
They used a longer arm than the original on this configuration so could stay away from using an extension tube (see below).
I asked my A&P how he was going to get the wide float through the small tube from the gauge to the tank, he said just disconnect the arm, drop it down the filler cap, catch it and hook it up again. Smart guy.
!cid_0170DDD8017D4D588DAD0BF1A1D91758@meyersPC.png