Oh Dave, i wonder if this SD issues is getting more attention than it deserves?
I need (not urgently) a new multimeter as my main one is on the blink so thought i'd treat myself to a nice new one as landmark birthday coming up.
Friend wants me to do some battery performance comparisons plus i want to do some solar cell output checks so data logging via MM seems the way to go.
Bust my brain for a week going around the reviews/shops looking for what I thought i wanted which was a wired solution (RS232/USB).
Then a moment of clarity dawned, a MM with 4xAA built in recording/logging at a price the fits my needs+budget equation that doesn't need wires WOW!
Much searching reveals one solution the 121GW, Dave when can i have one please?
I only mentioned the SD hatch as possible scenario "Can't find my USB dongle and Bugger I need to go to workshop for Screwdriver.
Please forget i ever mentioned it and if there's anything i can do to help you get the 121GW in the shops just ask as i'm retired and have time to help good projects like this :-)
Plus lots of C/C++ PC and embedded/PIC coding miles.
Ian