You can definitely plug in a UTH into the basic herpstat. This is the exact setup I use as well.

You want to be wary of plugging in heat lamps into herpstats tho, Im not sure if thats what they were meant for. Radiant heat panels are ok for herpstat as well.

Cheers and good luck
Like someone said, you only need the basic herpstat, it will be more than enough, unless you plan on breeding.