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Dan -
They are compatible with the Grand Rapids HX. They need a module that does some converting to get the proper signal. They were also used in a Blue Mountain EFIS (now defunct) with the same modules and were very accurate. When we calibrated these probes in our ES a couple of weeks ago, we has less than a gallon difference between the probe and actual. The delta was on the actual side so they are a tad conservative. It is my understanding that these probes are the same as the ones sold by EI. The only alleged difference is that the sending/computational circuit is external on the EI probes and internal on the VM's. External would be far better if one of the units went bad. You wouldn't have to remove a wing to get the probe out.
I certainly would talk to the techies for any company before buying into their EFIS system.
Hope this helps,
John Schroeder
ES with 435 hours and loving it more every flight.
On Tue, 29 Mar 2011 23:03:17 -0400, Dan & Kari Olsen <olsen25@comcast.net> wrote:
LML Gang,
I am in the early stages of building a IV-P kit (already have built a 320)
and am about to do the fuel probes in the wings. The kit I have came with
the Vision Micro 12ft fuel probes. Do any of you know if these are
compatible with the Garmin 900X and/or other modern EFIS systems?
Dan Olsen
Fort Collins, CO
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