Dear WeatherCatters who also need to be handy about electricity.
Just to bring this thread to a neat conclusion. After spending some time researching my options, I ended up purchasing a Fluke 117 multimeter. I took Felix's advise and bought it from TEquipment:
https://www.tequipment.net/They had Amazon beat by a few bucks and threw in a free soft-sided carrying case. Here is a photo of the 117 and the case in their original packaging:

At first, I was a bit intimidated by the manual:

However it includes instructions in
9 languages!
I gave it a first test by measuring the voltage of
trusty wagon's battery with the trickle charger connected:

The "hold reading" feature was very handy for this. There was no way I could hold the test leads on the battery and still take the picture!
Here is one last picture of the multimeter in its case:

It isn't the best fit, but you can't quibble with the price! For my needs that will be just fine.
Thanks for the advice!
Cheers, Edouard
![Cheers [cheers1]](https://athena.trixology.com/Smileys/default/food-smiley-004.gif)