I have just taken delivery of a new batch of these controllers but instead of being called 1.1 this model is called 2.1

Personally i think they are the same just that these have a neater and cleaner button layout and all in English.
Manual is the same manual, I think but again better English although it shows some of the V1.1 screen shots inside.

Doing some testing over the next two weeks, eye operation not withstanding then got 15 machines to convert down in Oxford 3rd week of November.]

Without this stand alone controller I would not have got the job.