"Garrett Fulton" wrote in message
...
On Thursday, May 11, 2017 at 6:38:03 AM UTC-4, Jim Wilkins wrote:
.....
Thanks. Looks like it will work with 2 9V batteries. Ordered it.

Garrett

The slot in the board and the included clips can hold an A23 12V
battery, crudely. I bent the tabs at an angle to center the clips on
the battery. When my house warms up to 21C I'll measure it on the
5-1/2 digit meter at 12V and 18V.
-jsw