KPNuts wrote:

It will partly depend where you have put the display. I put my in the "pen tray" in the centre of the dash.

Internal sensor went on the blank centre switch low on the dash, but not ideal as heat coming from the low down outlets causes it to read high.

Thanks - I put my sensor in the "usual" place...but a bit higher than on alantd's piccie:

Click image to enlarge

I like the idea of putting the sensor on one of the blank switches in the dash.

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I ended up moving my external sensor as it was being affected by engine bay temperatures (it was in the inner wing) now relocated to just behind the headlight - seems fine so far.

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External sensor went between inner wheel arch and the front of the wing on nearside (IIRC similar to dgardel's). Seems pretty accurate as does not seem to get engine or exhaust heat and is out of the wind. Wire was taken through bulkhead when running wiring for supplementary switches etc.