Ideal 77DE-06-09 versions

Hello.

How can I distinguish which EU version of Ideal 77DE-06-09 is mine?

Docs are mentioning only [TDC DA-10-09] model ambiguity but no [Ideal 77DE-06-09].

Kind regards
WK

There is a level V and a level VI version as I recall. Usually the Roman numeral is enclosed in a circle, preceded by the word level. When I get home I’ll verify that.

That is clear now.
Thank you!