I wish to upgrade my 1.0 to the new PCB and sensor, any idea on availability for both (120v)?
By sensor, if you mean the IBTS then that should be available on the Aillio site to order. I got mine for $60 plus shipping. If by PCB you mean the updated one for the socket for the IBTS, if you don’t fancy your own DIY soldering, that I haven’t seen.
If you mean by PCB, you mean the new V2 power induction board, AFAIK that is still being tested for 120v machines although it is already available for 220v.