Are all defi boost gauges either PSI or Kpa..?

If so, am I correct in thinking the Kpa calibration is basically the same as BAR..?

I know 100 kilopascals (Kpa..) is equal to 1 bar, so do you just accept the Kpa reading as BAR, IYSWIM..?

Without this being pointed out to me I wouldn't have realised it wasn't in bar..

 

It would appear most boost gauges read Kpa x100, not bar afterall, from what I can see anyhow..!