The gauge sensor is a thermistor and it is the single pin one.
110 ohms-60 C
67 ohms -80 C
38 ohms-100 C

The 2 wire blu is a thermistor and it is temp input to the ACC panel [ Aux High Fan uses this input].

The orientation of the sensor at the back of the head makes no difference b/c it is 2 thermistors in one case and they are wired Diagonally across the pins and are of the same value, so it can be plugged in any way and be correct.

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A Dalton