Thanks, apologies for the silly question and found another thread in here that helped.
It is a dual supply, both floating, and the manual does indicate the dual supplies can be run in series, parallel and tracking modes, which I believe can support at floating bipolar output. I've got a couple of DIY linear supplies, but was looking to get something a little more robust in terms of chasis. At $50, I think I can take a risk on making this work.