WOW, that was fast shipping.
Ordered Thursday @ 1:00 am and it's in my mailbox Saturday, Thanks Barentt.
Here's a test of my NDG7475 running on a 1.8a X-drive with a 3 element green AR coated lens, 1st reading 774mw 2nd reading 780mw, DTR showed 1187 @ 1.8a with a G2 and the G2 lets 95% through and the 3 element 70% so that looks right on the money to me.
The case has little prongs that go through the boards corner holes and fit into sockets on the back, but I wrapped some tape around mine just to make sure it stays put, the nice thing about the case other than protecting the exposed circuits is the meter will stand on it's own so you can see the numbers as you take your reading. The case is not a perfect fit.
The ( 5263nm ) is from a NUBM44 at 4.5a with a 3 element and 3X beam expander and an old 44 that seemed a little weak is only doing 3.5w through a 3 element....I figured.
I have an 06 that always seemed extra strong and it's doing 6.5w through it's GBall and a 3X beam expander and it's not even new, but new 06 diodes I tested with GBall intact are doing 5.5w and that nubm42 is doing 4.2w through a 3 element.
It seems to be accurate enough.