Yes I have one that's very accurate if your moving. We are in a snow storm
right now but I will get a picture of it later if wanted.
When I worked I had to measure an adhesive at high temps (130ยบ).
I used a dial thermometer for liquids that was stainless, a round dial with approx.
a 6 inch long stem that was inserted into the hot liquid.
Wanting to measure air temp and not the heat of the engine. I took the top of
the right fork below the top clamp and put on 2 zip ties. Then inserted the stem
of the thermometer into the ties. Sitting on the seat I have a perfect view of the
temperature of the air hitting the front of the bike. The dial is approx 1.250 dia.
My son lives in Mesa and he laughed when I told him I stuffed a glove up there so
I didn't know the current temp

If I stop at a red light I can see the temp start to rise as the heat leaves the engine
and follows the tank curve.
Not sure but I think places like Grainger have the thermometers.