No touch protection as in it's open on four sides, right? With metal through-screws, to boot. As opposed to an enclosed, isolated case. I guess it'd be safe for low voltage measurements?
The device is only really meant for low voltage measurements to begin with, as you can see in the specifications below it's only rated for +-40V inputs. They get away with it because by using a x10 probe (which attenuates the signal 10:1) which means while you can now measure +-400V, the device itself will still only see +-40V and the software will correct the readings.