http://http://www.easa.eu.int/home/tc_aircraft_en.html
And as a pilot on L410 I agree with pete it's a great and reliable bird. And besides nonpresurization another thing keeps it out of RVSM level and that thing is a fancy litlle placard on the "dashboard" and it says:
'MAX operating FL without O2 FL100'
and also...
'MAX operating FL140'
Cheers to all especially to pilots from Ben Air Adam and Frank!
HAPPY LANDINGS!