I use a 19 dollar bought at home depot model
been using it for about 6 years
works great, every time I go to calibrate it, it is within 2 degrees. It is one with the resister in the probe, not a bi metal, as far as I am concerned bi metal probes are so inaccurate they need to be thrown out.
I just set the temp I want, put the probe in the meat, clip the remote on my side and it gives me updates by beeping and changing colors of the screen.
I think the 2 things you need to look for is resister not bi metal and able to calibrate.. Oh a liquid proof probe hwlps to, I use mine in my deep fryer also, without a liquid tight probe they will short out.