It may depend on how the tabs are set up. If you can see it in the page source without any problem then usually Google can too. Quick test to check: Grab a chunk of content, copy/paste it into Google search with quotes around it and see if your page comes up. If it did... then yes, Google read it perfectly fine. If not then you need to check how your tabs are hiding the content and fix it.

Two of the ecommerce sites I work on handle content on product pages using tabs to separate specifications, description, accessories and so on. Google can see all of our stuff perfectly fine as one page.

Your full title, Security systems | wireless | battery powered | Police Approved | CSS, winds up truncated because its 69 characters with spaces and features a few wide letters (like those W's) that make it too long pixel-wise (as William pointed out).

I think what may be happening is that you said you're looking in Google Analytics for it but the steps say to check Google Webmaster Tools.

I've had this issue twice in the past. Once was because of a conflict between All In One SEO and another plugin which was fixed by updating the plugins. The second time was after a theme change where it turned out the theme had an internal suite of SEO tools that were adding the secondary description which was fixed by shutting off those features. Without knowing all the details of your wordpress site, its a bit hard to determine the exact cause. Check that your theme doesn't have a function interfering with All In One and try turning off plugins to see if any of them are in conflict. Could be as simple as needing an update.

It is always best to do a one to one redirect instead of a chain. As Federico said, there is some pagerank loss when doing a redirect (though the exact amount is debatable and may be neglible) and redirecting A to B to C compounds the problem. On top of that, too many redirects in a chain will lead Googlebot to stop crawling the chain. One or two is fine, three or more is not. In this older video http://youtu.be/r1lVPrYoBkA Matt Cutts started talking about redirect chains at around 2:48 and mentions that one, two and maybe three in a chain is fine. This Whiteboard Interview from 2010 with Matt Cutts http://moz.com/blog/whiteboard-interview-googles-matt-cutts-on-redirects-trust-more also states the 1 or 2 301s in a chain. So if you're redirecting  A -> B -> C -> D -> E -> F... you're possibly hurting yourself. Where possible you should change the redirects so its A to F, B to F, C to F, D to F and E to F. As for removing the redirects after a certain number of months, I'd check to see how many people are still linking in with that older URL. You'd want to ask sites linking in to update to the newest URL before you 404 it and lose those links. And if you're still getting tons of direct traffic coming in on an old 301 then you might want to do some digging & research before you cut off that traffic. Odds are though after a few months you wouldn't be getting as much traffic coming through on the older URL but there is always the possibility.