the 2190As are good, and cheap
if you are going to want to read more than one TC you'll need a multipoint selector also (Y2001)
(I have a spare)
can't give you my TC-4 as I ues it to verify the baseline after system changes
Hoot has the drilled Innovatek
what about the 462-U ?
all my others are not so common
but does that really matter ?
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