That one looks fine. They really arent that expensive.
As another suggestion though, I have found great success with going to the humidifer/heater section in Target Or Walmart and getting digital thermometers that also measure humidity which is important to know in our vivs. They are about 6-8 dollars and will do two temps..the room temp and a second temp for whereever you have the probe, PLUS the humidity. These have been great for me in my snake room in general and in incubating set ups.
Best of luck to you.