Dahua Mini Black Face PTZ (SD29204S-GN) but its not all weather rated.
PTZ's to Fixed cameras are like Bicycles vs Motorcycles.. You can get a cheap Motorcycle that costs as much as an expensive Bicycle, but not vice versa.. ones a rather simple device and other is vastly more complex.. If you ever see a cheap motorcycle being sold for the same price as a cheap bicycle then you can be sure your not getting a drop of quality/reliability.
If you'd like a good PTZ experience, get the lite black face starlight dahua.. then you'll be willing to spend even more money on the nicer ones in the future.
I have 2 Dahua PTZ's and a 3rd on the way, they are largely toys but I really enjoy using them w/my automation kit.. and they all rely on fixed cameras to keep an eye on the most key targets so if camera is looking away something is still recorded, otherwise I get 2 angles and one is nice and tightly zoomed.. mine are more secondary cameras for getting that extra bit of zoom out on a car door faraway overnight, or getting more detail on what kids doing in back yard.. or to watch that shady figure walk down the street and make sure they pass on by without causing any trouble when I'm at my computer.. which I almost always am, even late at night.
If you have a security guard, or become your own by setting up a dedicated display you can quickly take control of a PTZ through.. then they can be quite a bit better than a fixed camera, but not if they spend 99.9% of the time parked on the same target.. most residential setups cant use very much of the zoom and standard optics up to 12mm are plenty for most modern cookie cutter houses... my 12x 60mm PTZ is zoomed in really far on car door on the street from all the way from the back yard and still using 2/3rd zoom.. those 25x starlights have twice the optics @ 120mm.