I used one coupon for a HF free meter and tossed in my toolbox for use maybe someday since I have several good quality meters and never looked at it again. I finally saw a use for them and may pick up a few more. Not the obvious tire chocks, but for bench tests where its handy to line up three or four and monitor several currents and voltages at the same time.
Now I could see putting four of them mounted to my bench shelf and powered with a single wall wart instead of batteries.
Now I could see putting four of them mounted to my bench shelf and powered with a single wall wart instead of batteries.


