Lynn we have a few "purists" who will tell you "yes" and some who (like myself) will look for the best performance vs $$$ spent. I am making my recommendation after owning this unit for 6 years, (still do and still rely on it heavily). For the $$$ vs value/performance it is tough to come even remotely close.
https://www.amazon.com/ThermoPro-Wa...xtrous-Thermocouple/dp/B07R18W3W1?tag=tvwb-20
Not only is the product top notch the company is as well. When I bought mine close to a year into owning it the probe broke. I called the company. Got US Based support and within 2 or 3 days a brand new one delivered to me, which has been flawless since. Even though I am VERY cruel to it.

For under $25 you cannot go wrong