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The Davtron  #301 OAT uses "active component" technology and is therefore not dependent on the EMF set up by the thermocouple.  According to Davtron, you can cut their prewired probe wire and install a simple connector, eg molex, add all the wire you need (down to #30 if you wish) and it will still give an accurate readings.  Mine is installed and gives accurate readings, with two molex connectors in line and about 8 feet of #22 tefzel added to allow connection to the probe at the aileron bellcrank inspection panel.  Bob Young

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Please send your photos and drawings to marvkaye@olsusa.com.