I know you guys were talking about this earlier in another thread, and i went poking around and found some on EBAY...
You can go here: http://stores.ebay.com/Testing-Equipment and look for moisture meter.
Now, his aren't cheap either, but cheaper than the ones mentioned here... $134
Also, if you just do a search on ebay for "moisture meter" you will get all of the different kinds, just make sure , as mentioned elsewhere, that you look for GRAIN or SAWDUST moisture meters.
Here is one that is listed till the end of January for $84.90 with free shipping:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=370314401589&ssPageName=STRK:MEWAX:IT
http://images.channeladvisor.com/Sell/SSProfiles/33000337/Images/5/16WET001-MC7821-A.jpg
If you look at that photo, you can see WHY those are for grain/sawdust, the probes are about 9 inches long instead of the regular wood moisture meters that have short little probes.
I would guess you could stick them probes into a bag of pellets just the same and see the moisture content without opening a bag.
Just my two bits guys.
