Can 2 hand held Paradigm touchscreens be connected at the same time?

Yes. You Can have multiple handheld portable touchscreens on the system at once, 18 in fact per processor. I assume you mean the portable handheld version via an Ethernet cable?  A tech will have to add the touchscreen into your system configuration.

Chris - Referring to the P-TS7-H.  Now that I know that this is an option, I'll get a quote on the touchscreen.  Thanks, Tom

Chris - Referring to the P-TS7-H.  Now that I know that this is an option, I'll get a quote on the touchscreen.  Thanks, Tom

With the P-TS7-H you must have at least one P-LCD-DOCK or WAS (Wireless Access Station) per P-TS7-H you want to use at the same time. A single DOCK or WAS is unable to have two P-TS7-H units connected through it at the same time.

Since you already have "4 locations" where the handheld can connect, presumably that means you already have 4 DOCKs and/or WAS, which is great!. If you purchase a second P-TS7-H then you'll be able to have both units connected in two separate locations concurrently.

Of course, you'll still want to confirm that you actually do have more than one DOCK and/or WAS. It's also possible that they're separate physical locations, but all within close enough proximity that it's only one wireless point to connect through.