Hi Kevin, welcome to the Family!
I have this unit..........
The Timber Check Moisture Meter made by ComPro Tech Canada
Got mine from Lee Valley for $79 USD
I like it very much, you could run over it with your truck and not break it.
One other trick that I've used is to drive in some small finishing nails into the wood, and then touch the two pins to the nails.
You can probably get it cheaper somewhere else.
I'd really like one of the wireless units, but the last time I looked, they were an additional $200.
Hope this helps.
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward