It is adjustable with the typical dials like a cheaper gas grill. No 'temp' markings, but about 90 degrees of adjustment with 4 or 5 hash marks as far as knob movement wise. It also has a regulator, but didn't notice that being adjustable.
However, this is where learning your 'grill' comes into play. Since it's mixing an adjustable flame with with a thick cold rolled steel top, I'm still learning what position is close to what temp and then what affect the wind and ambient temp will have in the equation. I didn't take notes, but I distinctly remember looking at 290's on 'low' in the left side of the cook zone to just over 500 on high in the very center rear. I'm not sure how close it was to peak temp because I turned down pretty quick since I was shooting for 350-400 or so at the time.
Right now, I'm calling the cook zone the back 2/3-3/4 of the surface, I think the front 1/4 is going to be the holding/warming zone at this point.