Engine Temp LA 360

Do a search for dual temperature meter or dual input digital thermometer. Fieldpiece, Cooper, and of course Fluke (if you have money) is a good brand. But it's hard to find one with long leads that will let you use it in the car. Thermocouple wire is of course, not the same as regular copper wire.

I tried copying the link from Amazon, but something went wrong.

Amazon product ASIN B000OLCD9Q