The odds arent very good, but since it's a refurb, it might be an older 2007wfp and the first ones were almost exclusively S-IPS.
WHen you get it look on the back, if it's Rev A0 and made in MExico, then it is almost surely S-IPS, because that's the Rev and place of manufacture of my 2007wfp and it's S-IPS.
To be sure, you're going to have to enter the monitor's service menu. I can't remember how right now, but u can look it up easily. At the top it will list the panel being used. When you get that panel code, report back here.