I bought a 2 pack of these, because I liked the color... and I like the fact that it was geared for smoking with the color zones, and only goes to normal cooking temps (550) using more space on the dial for that smaller range. (It doesn't go to 800 degs with smaller and less accurate gradiations for the same amount of needle movement There's probably a better way to explain, lol.)
After I received it... I was even more pleased. The listing doesn't make it clear... but it adjustable. The stem has a small slot on it, and you can calibrate it. That's got two benefits: First... you can make sure it is accurate to begin with (so I checked it against my electronic probe thermometers... and it was good). Secondly, you can adjust it how you like. I've read of others mounting it in the top (just like weber does), but then adjusting it downward so it is reading the equivalent of the temperature near the grate. A handy idea if you'd like to do that. However, like you... I mounted mine low on the kettle lid, as near as i could to the grate.
https://www.amazon.com/gp/product/B06XHCQLN7/ref=s9_acsd_hps_bw_c_x_4_wSO, the price is right... thus far (after 2 months) it hasn't gone screwy... so I give it 5 starts. I bought the two pack, just assuming I'll pick up another kettle sooner or later. ;-)