stick on temp sensor

[20focus05]

Hi Peoples

I am looking for a stick on temp sensor for a auto trans.
I have found a few in the U.S. but only the sensor I want a stand alone sensor and guage.
Its for a new nissan navara that is towing a 5th wheel. there is not alot of room at the cooler outlet due to shift linkages.
Want to stick it to cooler outlet pipe.

was thinking of puting in a screw in sensor in a tap near the cooler outlet but not sure if it is a high pressure area

Thanks