You can clearly see the device used, Phoresor II Auto PM850, which I found for around $1k. But I also found a similar, medical-grade device, the Trivarion ActivaDose Phoresor, available here for $250. It seems to be in a family of medical device that is used to deliver water soluble drugs via the skin. More here.
The CBS video is from 2008!
so, could this also be used for tDCS as well please respond?
Yes. Likewise this Activa Dose II Contoller Ionto which comes to us via a very thorough post on what one fellow, johnboy6785 over at Reddit, is using.