It should. But I’m ahead of you :-) And I don’t know for sure.
Guys, get a grip. I’ve had it and the thing isn’t worth the effort or the money. It’s far too sensitive to stray light. I once compared mine with a ‘proper’ spot light meter and measured deviations of up to +2 EV when measuring a dark area while looking past a bright one. Even a wider measurement circle didn’t make much difference, as long as the bright area is in the viewfinder.
As a spot light meter, this thing is pretty much useless.
Best regards
Stefan