(ET) Landis controller vs. GE timer

[Jeremy Gagliardi com]

There seems to be some merit in using *both* the Landis controller and the
built-in GE timer.  However, as we learned not too long ago, keeping both 
hooked
in parallel is a no-no, because the timer has 2 little wires providing it 
power,
and while the Landis controller is active, it can automatically activate 
the
timer, causing an endless loop of charging.

So, I set out to find a way to keep both units hooked up but without the
"continuous charging" problem.  I bought a radio shack 2-way switch that 
can
handle 2 isolated circuits (i.e., 2 different inputs and outputs).  This 
will
allow the timer to be provided power on one side of the switch and the 
Landis
controller provided power on the other side, but not both at the same 
time.  I
haven't hooked it up yet, because I noticed an anomoly from those 2 little 
wires
providing power to the timer switch.

I measured the voltage and it said 7.6V.  Plus, no matter how I connected 
the
red and black leads, it always read it as positive voltage (i.e., when I
reversed the leads it did not read negative).  First, why is it 7.6V, and
second, why does it always read positive?

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