Is it a 'thermo-couple'?

i.e. two dissimiliar metals that create a voltage when heated.

Mark Ingalls
85 GL
75 Beetle

>From: Stan Wilder <wilden1@JUNO.COM>
>Reply-To: Stan Wilder <wilden1@JUNO.COM>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Wiring VDO Cylinder Head temp.
>Date: Sat, 8 Sep 2001 18:31:32 -0500
>
>I just purchased and *almost* installed a VDO cylender head temp gauge.
>The sending unit is the type that goes under the spark plug on #3.
>There are two wires coning out of the sender into a connector, there is a
>connector that plugs into the sender connector and two wires,  one black
>and one red (I'm going to assume that the black is ground).
>I ran the pair of wires and connected them to the only two terminals on
>the gauge, red to + and black to - (ground earth symbol).
>I'm aparrently the second owner of this gauge because I didn't find
>wiring instructions in the parts envelope.
>I am assuming that this gauge isnt nuclear powered and will require
>power.
>So how does this bubba hook up?
>I haven't hooked 12 volt to anything yet, but it has to get power from
>some source.
>Gauge kit # 310-901, 1-232-901-22d
>
>Stan Wilder
>83 Westfalia Air Cooled
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