After spending some money in super-duper thermometers, I realized that it's not worth it.
I usually do a lot of L&S and indirect, with temperatures that are lower than 350 F
So I decided to buy 2-3 IKEA thermometers. Here I can found them at something close to 7 €, means 8 $ roughly.
They works good, they last more or less one year.
When they don't work, I buy another one. Simply. No issues, no displeasure.... I always have a thermometer as spare in my bbq box