Earlier this summer I was seriously considering an EI analyzer and asked
for more details. Here's the answer along with an estimate of labor
hours:

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1. In regards to the UBG-16, the long-term memory of the "Normalized" mode
can be used without the MUX-8A data recorder if you choose to. The
"Normalized" mode is the mode in which you can graphically compare current
operating temps derived from the Lean mode with previous temperatures at the
same configuration. This is extremely useful in identifying trending
temperatures. If a CHT or EGT start to drift from what they were prior you
will immediately spot it and hopefully avoid serious engine damage. The
MUX-8A is an 8 channel "black box" that outputs to a PC or laptop. I feel it
is a worth while install, it's quick, included in the packages, and its
extremely useful.

2. UBG-16 is roughly going to take 4-10 hours, possibly slightly more, for a
typical four cylinder. Installer experience and aircraft specific
challenges are going to be the biggest factor here.

3. Part# UBG-16-4 MEM includes 4-EGT Probes, 4-CHT Probes, Extension
thermocouples, and the MUX-8A data recorder. ( You get a free oil, carb, or
OAT probe as well as a rebate!)

4. Part# FM-FLOW can be ordered free as part of the UBG-16 rebate as well as
the free probe. This will report gal. p/hr. on the UBG-16. If you would
prefer a totalizer instrument with GPS interaction the FP-5L can be
purchased as a rebate for $269.00 (normally $778.00)

5. The UBG-16 is configurable to compliment your existing panel. The unit
is designed to accept up to 16 inputs of your choosing. Or you can simply
run just EGT/CHT on it. It is completely up to you. I see a lot of people
adding RPM, volts/amps, and fuel or oil pressure. The indication on older
equipment just isn't as reliable as what is available today. Plus, any
function you choose to add to the UBG-16 will output to the MUX-8A recorder.
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Installation would be in an O-360 in a cherokee. Hope this helps.

4-10 hours @ $50-70/hr becomes $200-700 for the install.