It should be Geo.
I'll mainly be using the 0.2mm tip / needle, which should allow very fine lines, and good control for mottles and diffusing effects, whilst allowing a reasonably wide coverage for general spraying, probably up to 1/4 to 1/2 inch or a touch more, which is fine for a 1/48th scale fuselage or wing - I'll know more when I try it out on the F-5, probably tomorrow, as I have a bit of other work to do today, and my wrists are already hurting !.
The option of the 0.4mm tip / needle will allow much wider coverage, I'd guess from maybe 1/16 inch up to maybe 1 inch, depending on distance / paint mix, which will be useful for large area, single colour coverage, or overall clear coats, for example.
The choice of 'plug in' paint cups is also useful, and I'll mainly use the larger, 5ml cup. Although I rarely spray small parts or areas, there are times when only a small amount of paint may be needed, so the smaller, 2ml cup will make it easier to measure and load.
The Ultra airbrush is supplied as standard with the 0.2mm tip / needle, and 2ml cup but, as with a number of the H&S airbrushes, they do these "Two in One" kits, with the extra needles/ tips/ cups, which works out at less cost than buying the separate parts.
I'd looked at various "quality" airbrushes, and each had their advantages, although some, which would have been fine, were limited by the tip size, whilst others, although very good, were perhaps over-priced and / or the cost couldn't really be justified for the use I'll put the brush to - talking over £150 to over £200 - maybe fine if used for hours per day, five days per week, but a bit much if used, like me, maybe four or six times per year.
The UK price for this particular brush kit, including tax at 20%, was a touch under £90, which isn't too bad, and of course the quality and precision engineering is as good as the rest of their range. H&S have been in this trade since the 1930s, and 'brushes manufactured by them under the 'Aerograph' trade mark were once one of the industry standards in the graphics and illustration fields, so a known and trusted pedigree.
As previously mentioned, the initial inspection and 'feel' of the brush immediately showed the difference in quality, precision, weight and balance, compared to the cheaper, but adequate, 'brushes I've been using over recent years, but of course I'll know more when I actually get to use it.
I'll post a full review and "road test report", hopefully with some photos of line and tint work etc, within the next couple of days.