Yup that’s the kind of thing.
I am sorry I don’t know the difference between the ones you are looking at.
I went with this one (and I know some other BYC have the same).
https://kencove.com/fence/Electric+Netting+10/40/3½_detail_NSPCG.php
Premier 1 Supply also has them but a bit pricier. I find both companies knowledgeable and responsive and willing to answer dumb questions over the phone.
Remember you will need a fence energizer. I got a solar one. I was a bit intimidated by it because it seemed very complicated - but actually it was very easy to set up. I hot wired my actual coop with regular wire before expanding to the run.
I got my energizer from Premier One. I don’t remember the model but could probably dig it out (or just look at it in the morning).
I went with a 40” high fence. A fox can clean jump 3’ and climb much higher. So theoretically a fox could get over this without being zapped if they jumped and then climed and weren’t touching the ground when they were climbing.
In practice I have seen foxes ‘investigate’ first and they get their noses zapped and stay away. In fact I think they can tell it is on (it does make a sound) and don’t come near.