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It looks like both the hot and neutral go thru the current transformer (red coil on the right), so it could be a GFCI as well.
All AFCIs are also GFCIs, the difference is that the GFCI for personnel are set in the range of four to six milliamperes, most of the AFCIs are set for around 30 milliamperes. I believe there are some AFCI/GFCI combinations but that does not make a combination type AFCI. I think this is going to get confusing. [Linked Image]

Charlie Eldridge, Indianapolis Utility Power Guy