Yeah, this camera should suit you well for a wall mounted PTZ.
The "10x optical zoom" can be a bit of a misnomer with cameras in general as it's based on the starting point of the lens. The more important number to consider is the range (in millimeters) listed. The higher the value, the more "zoomed in" the image is and the lower the value, the more "zoomed out" the image is.
For example, the lens in this camera has a starting point of 5.1mm...Thus a 10x optical zoom on it will equal a 51mm lens (5.1 * 10 = 51) when it's fully zoomed in.......Another similar camera may have a 15X optical zoom, but a starting point of 3mm. That lens would be 45mm when zoomed in completely (3 * 15 = 45), which is less zoom than the 51mm lens. The result in this case would be that the 10x zoom is "more zoom" in real life than the 15x zoom of the other camera because the 10x camera initially started in a more zoomed-in position.....As a comparison, Bob makes $100,000 a year and doubles his salary. Joe makes $50,000 a year and triples his salary. Bob would now be making $200,000 and Joe making $150,000...Even though Joe tripled his salary and Bob only doubled his, Bob is still making more money because his starting point was higher.
Point is, focus on the millimeter range of focal length rather than "___X optical zoom" as a higher number optical zoom doesn't necessarily mean you will be looking closer up to the subject you're recording.
Now back to this camera in particular, it's range is 5.1mm to 51mm...The 51mm should be way more than enough zoom for inside a building. Even an object 200 ft away will look like you're right on top of it with that level of focal length. On the other hand, the fully zoomed out level (5.1mm) may not give you a wide enough areal coverage to see everything you want to see in the building at one time. That's one of my few complaints with this camera is that the starting point does not really cover a wide angle. Granted the pan and tilt can make up for that somewhat as it lets you change the cameras position, but personally I prefer to start with a very wide angle of view to where I can see everything at once, then zoom in closer to a particular spot when needed....Depending on the size and shape of the area you're trying to cover and how much area you want to be able to monitor simultaneously, it's possible that you would be better served with a wider (lower millimeter) lens and less optical zoom. This is especially possible when mounting indoors.
To summarize, I think you would be happy with this camera and it would probably work fine for you. Just need to keep in mind that you won't be able to get a wide angle of view with this "10x / 5.1 - 51mm" model....If the room you're monitoring isn't all that big and you need to monitor more area at once, there's a 4X optical zoom version which has a focal range of 2.8 - 12mm...The 2.8 would let you fit most (if not all) of the room on the screen at one time and the 12mm zoomed in will be pretty closely zoomed in to subjects in a small or medium sized room. Only way you'd need the 51mm zoom indoors is if it's a huge warehouse and you're trying to look hundreds of feet away.
Hope this helps some. If you can give approximate measurements of the area you're trying to monitor, we may be able to help give advice on the best camera to get.....
